21248970122 has 16 divisors (see below), whose sum is σ = 31960428360. Its totient is φ = 10595515392.

The previous prime is 21248970107. The next prime is 21248970133. The reversal of 21248970122 is 22107984212.

It can be written as a sum of positive squares in 4 ways, for example, as 4977161401 + 16271808721 = 70549^2 + 127561^2 .

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, 3281504 + ... + 3287972.

Almost surely, 2^21248970122 is an apocalyptic number.

21248970122 is a deficient number, since it is larger than the sum of its proper divisors (10711458238).

21248970122 is a wasteful number, since it uses less digits than its factorization.

21248970122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10697.

The product of its (nonzero) digits is 32256, while the sum is 38.

The spelling of 21248970122 in words is "twenty-one billion, two hundred forty-eight million, nine hundred seventy thousand, one hundred twenty-two".