12021231102 has 32 divisors (see below), whose sum is σ = 24764593920. Its totient is φ = 3887956800.

The previous prime is 12021231077. The next prime is 12021231109. The reversal of 12021231102 is 20113212021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021231109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115327 + ... + 193242.

It is an arithmetic number, because the mean of its divisors is an integer number (773893560).

Almost surely, 2^12021231102 is an apocalyptic number.

12021231102 is an abundant number, since it is smaller than the sum of its proper divisors (12743362818).

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

12021231102 is a wasteful number, since it uses less digits than its factorization.

12021231102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308768.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12021231102 its reverse (20113212021), we get a palindrome (32134443123).

The spelling of 12021231102 in words is "twelve billion, twenty-one million, two hundred thirty-one thousand, one hundred two".