21145600622 has 16 divisors (see below), whose sum is σ = 32463923712. Its totient is φ = 10324412280.

The previous prime is 21145600601. The next prime is 21145600639. The reversal of 21145600622 is 22600654112.

It is a congruent number.

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, 354797 + ... + 410087.

It is an arithmetic number, because the mean of its divisors is an integer number (2028995232).

Almost surely, 2^21145600622 is an apocalyptic number.

21145600622 is a deficient number, since it is larger than the sum of its proper divisors (11318323090).

21145600622 is a wasteful number, since it uses less digits than its factorization.

21145600622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59783.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 21145600622 in words is "twenty-one billion, one hundred forty-five million, six hundred thousand, six hundred twenty-two".