12021112110252 has 24 divisors (see below), whose sum is σ = 32056298960896. Its totient is φ = 3434603460048.

The previous prime is 12021112110251. The next prime is 12021112110253. The reversal of 12021112110252 is 25201121112021.

It is an interprime number because it is at equal distance from previous prime (12021112110251) and next prime (12021112110253).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12021112110251) 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, 71554238668 + ... + 71554238835.

Almost surely, 2^{12021112110252} is an apocalyptic number.

12021112110252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12021112110252 is an abundant number, since it is smaller than the sum of its proper divisors (20035186850644).

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

12021112110252 is a wasteful number, since it uses less digits than its factorization.

12021112110252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143108477517 (or 143108477515 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 21.

Adding to 12021112110252 its reverse (25201121112021), we get a palindrome (37222233222273).

The spelling of 12021112110252 in words is "twelve trillion, twenty-one billion, one hundred twelve million, one hundred ten thousand, two hundred fifty-two".