121210200220194 has 32 divisors (see below), whose sum is σ = 275925659042880. Its totient is φ = 39417951290400.

The previous prime is 121210200220097. The next prime is 121210200220229. The reversal of 121210200220194 is 491022002012121.

121210200220194 is a `hidden beast` number, since 1 + 21 + 210 + 20 + 0 + 220 + 194 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27373575072 + ... + 27373579499.

It is an arithmetic number, because the mean of its divisors is an integer number (8622676845090).

Almost surely, 2^{121210200220194} is an apocalyptic number.

121210200220194 is an abundant number, since it is smaller than the sum of its proper divisors (154715458822686).

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

121210200220194 is a wasteful number, since it uses less digits than its factorization.

121210200220194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54747154623 (or 54747154617 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 121210200220194 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred million, two hundred twenty thousand, one hundred ninety-four".