121202210122200 has 72 divisors (see below), whose sum is σ = 407037422333100. Its totient is φ = 32320589365440.

The previous prime is 121202210122183. The next prime is 121202210122229. The reversal of 121202210122200 is 2221012202121.

It is a happy number.

121202210122200 is a `hidden beast` number, since 1 + 2 + 120 + 221 + 0 + 122 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33667278790 + ... + 33667282389.

Almost surely, 2^{121202210122200} is an apocalyptic number.

121202210122200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121202210122200 is an abundant number, since it is smaller than the sum of its proper divisors (285835212210900).

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

121202210122200 is a wasteful number, since it uses less digits than its factorization.

121202210122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67334561201 (or 67334561189 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 121202210122200 its reverse (2221012202121), we get a palindrome (123423222324321).

The spelling of 121202210122200 in words is "one hundred twenty-one trillion, two hundred two billion, two hundred ten million, one hundred twenty-two thousand, two hundred".