21322857929101 has 4 divisors (see below), whose sum is σ = 22445113609600. Its totient is φ = 20200602248604.

The previous prime is 21322857929089. The next prime is 21322857929111. The reversal of 21322857929101 is 10192975822312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21322857929101 - 2⁵ = 21322857929069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322857929111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 561127840221 + ... + 561127840258.

It is an arithmetic number, because the mean of its divisors is an integer number (5611278402400).

Almost surely, 2^{21322857929101} is an apocalyptic number.

It is an amenable number.

21322857929101 is a deficient number, since it is larger than the sum of its proper divisors (1122255680499).

21322857929101 is a wasteful number, since it uses less digits than its factorization.

21322857929101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122255680498.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 21322857929101 in words is "twenty-one trillion, three hundred twenty-two billion, eight hundred fifty-seven million, nine hundred twenty-nine thousand, one hundred one".