22021527213 has 32 divisors (see below), whose sum is σ = 37406673920. Its totient is φ = 12542707440.

The previous prime is 22021527197. The next prime is 22021527239. The reversal of 22021527213 is 31272512022.

It is not a de Polignac number, because 22021527213 - 2⁴ = 22021527197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021527293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131743 + ... + 247788.

It is an arithmetic number, because the mean of its divisors is an integer number (1168958560).

Almost surely, 2^22021527213 is an apocalyptic number.

It is an amenable number.

22021527213 is a deficient number, since it is larger than the sum of its proper divisors (15385146707).

22021527213 is a wasteful number, since it uses less digits than its factorization.

22021527213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379854 (or 379848 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 22021527213 in words is "twenty-two billion, twenty-one million, five hundred twenty-seven thousand, two hundred thirteen".