129378962022 has 32 divisors (see below), whose sum is σ = 270330950880. Its totient is φ = 41226931200.

The previous prime is 129378961973. The next prime is 129378962039. The reversal of 129378962022 is 220269873921.

It is a congruent number.

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, 3663403 + ... + 3698550.

It is an arithmetic number, because the mean of its divisors is an integer number (8447842215).

Almost surely, 2^129378962022 is an apocalyptic number.

129378962022 is an abundant number, since it is smaller than the sum of its proper divisors (140951988858).

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

129378962022 is a wasteful number, since it uses less digits than its factorization.

129378962022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7362088.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 129378962022 in words is "one hundred twenty-nine billion, three hundred seventy-eight million, nine hundred sixty-two thousand, twenty-two".