12021230112102 has 48 divisors (see below), whose sum is σ = 26165285340480. Its totient is φ = 3988732320000.

The previous prime is 12021230112083. The next prime is 12021230112107. The reversal of 12021230112102 is 20121103212021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021230112107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19276702 + ... + 19890542.

It is an arithmetic number, because the mean of its divisors is an integer number (545110111260).

Almost surely, 2^{12021230112102} is an apocalyptic number.

12021230112102 is an abundant number, since it is smaller than the sum of its proper divisors (14144055228378).

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

12021230112102 is a wasteful number, since it uses less digits than its factorization.

12021230112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618829 (or 618826 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12021230112102 its reverse (20121103212021), we get a palindrome (32142333324123).

The spelling of 12021230112102 in words is "twelve trillion, twenty-one billion, two hundred thirty million, one hundred twelve thousand, one hundred two".