Search a number
-
+
222201010202020 = 22511110050510101
BaseRepresentation
bin110010100001011100110100…
…010010000010010110100100
31002010202012122110002200100021
4302201130310102002112210
5213111020132102431040
62104325422422524524
764542331113353053
oct6241346422022644
91063665573080307
10222201010202020
1164888a12544073
1220b08064896744
1396ca6084c5b05
143cc282ca5839a
151aa4e58dc124a
hexca17344825a4

222201010202020 has 12 divisors (see below), whose sum is σ = 466622121424284. Its totient is φ = 88880404080800.

The previous prime is 222201010201979. The next prime is 222201010202021. The reversal of 222201010202020 is 20202010102222.

It can be written as a sum of positive squares in 2 ways, for example, as 36680756183296 + 185520254018724 = 6056464^2 + 13620582^2 .

It is a super-2 number, since 2×2222010102020202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222201010201985 and 222201010202003.

It is not an unprimeable number, because it can be changed into a prime (222201010202021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555025255031 + ... + 5555025255070.

It is an arithmetic number, because the mean of its divisors is an integer number (38885176785357).

Almost surely, 2222201010202020 is an apocalyptic number.

222201010202020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201010202020 is an abundant number, since it is smaller than the sum of its proper divisors (244421111222264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

222201010202020 is a wasteful number, since it uses less digits than its factorization.

222201010202020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110050510110 (or 11110050510108 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222201010202020 its reverse (20202010102222), we get a palindrome (242403020304242).

The spelling of 222201010202020 in words is "two hundred twenty-two trillion, two hundred one billion, ten million, two hundred two thousand, twenty".

Divisors: 1 2 4 5 10 20 11110050510101 22220101020202 44440202040404 55550252550505 111100505101010 222201010202020