121222102021122 has 64 divisors (see below), whose sum is σ = 248713248795264. Its totient is φ = 39367429570560.

The previous prime is 121222102021063. The next prime is 121222102021151. The reversal of 121222102021122 is 221120201222121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 163991938 + ... + 164729474.

It is an arithmetic number, because the mean of its divisors is an integer number (3886144512426).

Almost surely, 2^{121222102021122} is an apocalyptic number.

121222102021122 is an abundant number, since it is smaller than the sum of its proper divisors (127491146774142).

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

121222102021122 is a wasteful number, since it uses less digits than its factorization.

121222102021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739203.

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

Adding to 121222102021122 its reverse (221120201222121), we get a palindrome (342342303243243).

The spelling of 121222102021122 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred two million, twenty-one thousand, one hundred twenty-two".