21222502411 has 16 divisors (see below), whose sum is σ = 23215701600. Its totient is φ = 19240038400.

The previous prime is 21222502391. The next prime is 21222502471. The reversal of 21222502411 is 11420522212.

It is not a de Polignac number, because 21222502411 - 2¹¹ = 21222500363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222502471) 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 15 ways as a sum of consecutive naturals, for example, 7775295 + ... + 7778023.

It is an arithmetic number, because the mean of its divisors is an integer number (1450981350).

Almost surely, 2^21222502411 is an apocalyptic number.

21222502411 is a deficient number, since it is larger than the sum of its proper divisors (1993199189).

21222502411 is a wasteful number, since it uses less digits than its factorization.

21222502411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4430.

The product of its (nonzero) digits is 640, while the sum is 22.

The spelling of 21222502411 in words is "twenty-one billion, two hundred twenty-two million, five hundred two thousand, four hundred eleven".