21229553022 has 32 divisors (see below), whose sum is σ = 42558856704. Its totient is φ = 7059914400.

The previous prime is 21229553003. The next prime is 21229553027. The reversal of 21229553022 is 22035592212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21229553027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6589372 + ... + 6592592.

It is an arithmetic number, because the mean of its divisors is an integer number (1329964272).

Almost surely, 2^21229553022 is an apocalyptic number.

21229553022 is an abundant number, since it is smaller than the sum of its proper divisors (21329303682).

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

21229553022 is a wasteful number, since it uses less digits than its factorization.

21229553022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 21229553022 in words is "twenty-one billion, two hundred twenty-nine million, five hundred fifty-three thousand, twenty-two".