23201220102 has 16 divisors (see below), whose sum is σ = 46415858160. Its totient is φ = 7731503712.

The previous prime is 23201220073. The next prime is 23201220103. The reversal of 23201220102 is 20102210232.

It is a happy number.

It is a super-2 number, since 2×23201220102² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201220103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536533 + ... + 578160.

It is an arithmetic number, because the mean of its divisors is an integer number (2900991135).

Almost surely, 2^23201220102 is an apocalyptic number.

23201220102 is an abundant number, since it is smaller than the sum of its proper divisors (23214638058).

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

23201220102 is a wasteful number, since it uses less digits than its factorization.

23201220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118167.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 23201220102 its reverse (20102210232), we get a palindrome (43303430334).

The spelling of 23201220102 in words is "twenty-three billion, two hundred one million, two hundred twenty thousand, one hundred two".