12101122210212 has 72 divisors (see below), whose sum is σ = 34959407852096. Its totient is φ = 3457403123904.

The previous prime is 12101122210201. The next prime is 12101122210327. The reversal of 12101122210212 is 21201222110121.

12101122210212 is a `hidden beast` number, since 1 + 210 + 11 + 22 + 210 + 212 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15194643 + ... + 15971205.

Almost surely, 2^{12101122210212} is an apocalyptic number.

12101122210212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12101122210212 is an abundant number, since it is smaller than the sum of its proper divisors (22858285641884).

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

12101122210212 is a wasteful number, since it uses less digits than its factorization.

12101122210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838417 (or 838412 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12101122210212 its reverse (21201222110121), we get a palindrome (33302344320333).

The spelling of 12101122210212 in words is "twelve trillion, one hundred one billion, one hundred twenty-two million, two hundred ten thousand, two hundred twelve".