21446111622 has 16 divisors (see below), whose sum is σ = 46191625200. Its totient is φ = 6598803552.

The previous prime is 21446111591. The next prime is 21446111627. The reversal of 21446111622 is 22611164412.

It is a self number, because there is not a number n which added to its sum of digits gives 21446111622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21446111627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137474997 + ... + 137475152.

It is an arithmetic number, because the mean of its divisors is an integer number (2886976575).

Almost surely, 2^21446111622 is an apocalyptic number.

21446111622 is an abundant number, since it is smaller than the sum of its proper divisors (24745513578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21446111622 is a wasteful number, since it uses less digits than its factorization.

21446111622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274950167.

The product of its digits is 4608, while the sum is 30.

The spelling of 21446111622 in words is "twenty-one billion, four hundred forty-six million, one hundred eleven thousand, six hundred twenty-two".