2123612078522 has 16 divisors (see below), whose sum is σ = 3510826345152. Its totient is φ = 955326894720.

The previous prime is 2123612078507. The next prime is 2123612078629. The reversal of 2123612078522 is 2258702163212.

It is a self number, because there is not a number n which added to its sum of digits gives 2123612078522.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 497563958 + ... + 497568225.

It is an arithmetic number, because the mean of its divisors is an integer number (219426646572).

Almost surely, 2^{2123612078522} is an apocalyptic number.

2123612078522 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2123612078522 is a deficient number, since it is larger than the sum of its proper divisors (1387214266630).

2123612078522 is a wasteful number, since it uses less digits than its factorization.

2123612078522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995132293.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 2123612078522 in words is "two trillion, one hundred twenty-three billion, six hundred twelve million, seventy-eight thousand, five hundred twenty-two".