2122112121200 has 60 divisors (see below), whose sum is σ = 5320042845168. Its totient is φ = 811938547200.

The previous prime is 2122112121167. The next prime is 2122112121257. The reversal of 2122112121200 is 21212112212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115322981 + ... + 115341380.

Almost surely, 2^{2122112121200} is an apocalyptic number.

2122112121200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122112121200 is an abundant number, since it is smaller than the sum of its proper divisors (3197930723968).

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

2122112121200 is a wasteful number, since it uses less digits than its factorization.

2122112121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230664402 (or 230664391 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2122112121200 its reverse (21212112212), we get a palindrome (2143324233412).

The spelling of 2122112121200 in words is "two trillion, one hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred".