2122661636224 has 16 divisors (see below), whose sum is σ = 4228739978670. Its totient is φ = 1061330818048.

The previous prime is 2122661636209. The next prime is 2122661636231. The reversal of 2122661636224 is 4226361662212.

It can be written as a sum of positive squares in only one way, i.e., 2091586997824 + 31074638400 = 1446232^2 + 176280^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8291646889 + ... + 8291647144.

Almost surely, 2^{2122661636224} is an apocalyptic number.

It is an amenable number.

2122661636224 is a deficient number, since it is larger than the sum of its proper divisors (2106078342446).

2122661636224 is an equidigital number, since it uses as much as digits as its factorization.

2122661636224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16583294047 (or 16583294035 counting only the distinct ones).

The product of its digits is 497664, while the sum is 43.

The spelling of 2122661636224 in words is "two trillion, one hundred twenty-two billion, six hundred sixty-one million, six hundred thirty-six thousand, two hundred twenty-four".