121201202221122 has 64 divisors (see below), whose sum is σ = 249319865991168. Its totient is φ = 39255488400000.

The previous prime is 121201202221117. The next prime is 121201202221147. The reversal of 121201202221122 is 221122202102121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1134035347 + ... + 1134142217.

It is an arithmetic number, because the mean of its divisors is an integer number (3895622906112).

Almost surely, 2^{121201202221122} is an apocalyptic number.

121201202221122 is an abundant number, since it is smaller than the sum of its proper divisors (128118663770046).

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

121201202221122 is a wasteful number, since it uses less digits than its factorization.

121201202221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125535.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121201202221122 its reverse (221122202102121), we get a palindrome (342323404323243).

The spelling of 121201202221122 in words is "one hundred twenty-one trillion, two hundred one billion, two hundred two million, two hundred twenty-one thousand, one hundred twenty-two".