121200122202200 has 48 divisors (see below), whose sum is σ = 281792291479080. Its totient is φ = 48479703528960.

The previous prime is 121200122202179. The next prime is 121200122202293. The reversal of 121200122202200 is 2202221002121.

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, 26967584 + ... + 31139216.

Almost surely, 2^{121200122202200} is an apocalyptic number.

121200122202200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121200122202200 is an abundant number, since it is smaller than the sum of its proper divisors (160592169276880).

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

121200122202200 is a wasteful number, since it uses less digits than its factorization.

121200122202200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316916 (or 4316907 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121200122202200 its reverse (2202221002121), we get a palindrome (123402343204321).

The spelling of 121200122202200 in words is "one hundred twenty-one trillion, two hundred billion, one hundred twenty-two million, two hundred two thousand, two hundred".