121200213200 has 60 divisors (see below), whose sum is σ = 317654752128. Its totient is φ = 44072803200.

The previous prime is 121200213181. The next prime is 121200213259. The reversal of 121200213200 is 2312002121.

It is a happy number.

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, 13768352 + ... + 13777151.

Almost surely, 2^121200213200 is an apocalyptic number.

121200213200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200213200 is an abundant number, since it is smaller than the sum of its proper divisors (196454538928).

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

121200213200 is a wasteful number, since it uses less digits than its factorization.

121200213200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27545532 (or 27545521 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121200213200 its reverse (2312002121), we get a palindrome (123512215321).

The spelling of 121200213200 in words is "one hundred twenty-one billion, two hundred million, two hundred thirteen thousand, two hundred".