121905269922 has 64 divisors (see below), whose sum is σ = 265710182400. Its totient is φ = 37143671040.

The previous prime is 121905269807. The next prime is 121905270007. The reversal of 121905269922 is 229962509121.

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, 1139779 + ... + 1242137.

It is an arithmetic number, because the mean of its divisors is an integer number (4151721600).

Almost surely, 2^121905269922 is an apocalyptic number.

121905269922 is an abundant number, since it is smaller than the sum of its proper divisors (143804912478).

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

121905269922 is a wasteful number, since it uses less digits than its factorization.

121905269922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102751.

The product of its (nonzero) digits is 349920, while the sum is 48.

The spelling of 121905269922 in words is "one hundred twenty-one billion, nine hundred five million, two hundred sixty-nine thousand, nine hundred twenty-two".