12001102111212 has 24 divisors (see below), whose sum is σ = 28017538278912. Its totient is φ = 3998229272400.

The previous prime is 12001102111157. The next prime is 12001102111247. The reversal of 12001102111212 is 21211120110021.

It is a happy number.

It is a super-2 number, since 2×12001102111212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001102111191 and 12001102111200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267238864 + ... + 267283767.

It is an arithmetic number, because the mean of its divisors is an integer number (1167397428288).

Almost surely, 2^{12001102111212} is an apocalyptic number.

12001102111212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001102111212 is an abundant number, since it is smaller than the sum of its proper divisors (16016436167700).

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

12001102111212 is a wasteful number, since it uses less digits than its factorization.

12001102111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534524509 (or 534524507 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12001102111212 its reverse (21211120110021), we get a palindrome (33212222221233).

The spelling of 12001102111212 in words is "twelve trillion, one billion, one hundred two million, one hundred eleven thousand, two hundred twelve".