12001102212 has 24 divisors (see below), whose sum is σ = 30548260512. Its totient is φ = 3636697600.

The previous prime is 12001102193. The next prime is 12001102271. The reversal of 12001102212 is 21220110021.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 45458589 + ... + 45458852.

It is an arithmetic number, because the mean of its divisors is an integer number (1272844188).

Almost surely, 2^12001102212 is an apocalyptic number.

12001102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12001102212 is an abundant number, since it is smaller than the sum of its proper divisors (18547158300).

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

12001102212 is a wasteful number, since it uses less digits than its factorization.

12001102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90917459 (or 90917457 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12001102212 its reverse (21220110021), we get a palindrome (33221212233).

The spelling of 12001102212 in words is "twelve billion, one million, one hundred two thousand, two hundred twelve".