21370014138122 has 16 divisors (see below), whose sum is σ = 34521225695880. Its totient is φ = 9862959555072.

The previous prime is 21370014138113. The next prime is 21370014138133. The reversal of 21370014138122 is 22183141007312.

It can be written as a sum of positive squares in 4 ways, for example, as 16769508213481 + 4600505924641 = 4095059^2 + 2144879^2 .

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, 3036047 + ... + 7208162.

Almost surely, 2^{21370014138122} is an apocalyptic number.

21370014138122 is a deficient number, since it is larger than the sum of its proper divisors (13151211557758).

21370014138122 is a wasteful number, since it uses less digits than its factorization.

21370014138122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324457.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 21370014138122 in words is "twenty-one trillion, three hundred seventy billion, fourteen million, one hundred thirty-eight thousand, one hundred twenty-two".