21885920112046 has 32 divisors (see below), whose sum is σ = 34595566207488. Its totient is φ = 10363530635040.

The previous prime is 21885920112041. The next prime is 21885920112107. The reversal of 21885920112046 is 64021102958812.

It is a happy number.

It is a super-2 number, since 2×21885920112046² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21885920112041) 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, 23937756 + ... + 24835216.

It is an arithmetic number, because the mean of its divisors is an integer number (1081111443984).

Almost surely, 2^{21885920112046} is an apocalyptic number.

21885920112046 is a deficient number, since it is larger than the sum of its proper divisors (12709646095442).

21885920112046 is a wasteful number, since it uses less digits than its factorization.

21885920112046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902736.

The product of its (nonzero) digits is 552960, while the sum is 49.

The spelling of 21885920112046 in words is "twenty-one trillion, eight hundred eighty-five billion, nine hundred twenty million, one hundred twelve thousand, forty-six".