Search a number
-
+
22202101231 = 127211745311
BaseRepresentation
bin10100101011010110…
…010010110111101111
32010022022011121020121
4110223112102313233
5330432214214411
614111032025411
71414121514052
oct245326226757
963268147217
1022202101231
1194635642a2
124377532267
13212a99380b
14110894ca99
1589e250571
hex52b592def

22202101231 has 4 divisors (see below), whose sum is σ = 22203859264. Its totient is φ = 22200343200.

The previous prime is 22202101189. The next prime is 22202101237. The reversal of 22202101231 is 13210120222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22202101231 - 29 = 22202100719 is a prime.

It is a super-2 number, since 2×222021012312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202101237) 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, 859935 + ... + 885376.

It is an arithmetic number, because the mean of its divisors is an integer number (5550964816).

Almost surely, 222202101231 is an apocalyptic number.

22202101231 is a deficient number, since it is larger than the sum of its proper divisors (1758033).

22202101231 is a wasteful number, since it uses less digits than its factorization.

22202101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758032.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22202101231 its reverse (13210120222), we get a palindrome (35412221453).

The spelling of 22202101231 in words is "twenty-two billion, two hundred two million, one hundred one thousand, two hundred thirty-one".

Divisors: 1 12721 1745311 22202101231