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101022220220 = 2255051111011
BaseRepresentation
bin101111000010101100…
…1001011111110111100
3100122202102010111202212
41132011121023332330
53123343142021340
6114224200435552
710204265463245
oct1360531137674
9318672114685
10101022220220
11399304562a9
12176b4178bb8
1396ac52978c
144c64b13ccc
152963d59a65
hex178564bfbc

101022220220 has 12 divisors (see below), whose sum is σ = 212146662504. Its totient is φ = 40408888080.

The previous prime is 101022220181. The next prime is 101022220223. The reversal of 101022220220 is 22022220101.

It is a junction number, because it is equal to n+sod(n) for n = 101022220195 and 101022220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101022220223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2525555486 + ... + 2525555525.

It is an arithmetic number, because the mean of its divisors is an integer number (17678888542).

Almost surely, 2101022220220 is an apocalyptic number.

101022220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101022220220 is an abundant number, since it is smaller than the sum of its proper divisors (111124442284).

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

101022220220 is a wasteful number, since it uses less digits than its factorization.

101022220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051111020 (or 5051111018 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 101022220220 its reverse (22022220101), we get a palindrome (123044440321).

It can be divided in two parts, 10102 and 2220220, that added together give a palindrome (2230322).

The spelling of 101022220220 in words is "one hundred one billion, twenty-two million, two hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 5051111011 10102222022 20204444044 25255555055 50511110110 101022220220