21122113102040 has 32 divisors (see below), whose sum is σ = 48014700410880. Its totient is φ = 8361743741952.

The previous prime is 21122113102033. The next prime is 21122113102063. The reversal of 21122113102040 is 4020131122112.

It is a super-2 number, since 2×21122113102040² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2721917912 + ... + 2721925671.

It is an arithmetic number, because the mean of its divisors is an integer number (1500459387840).

Almost surely, 2^{21122113102040} is an apocalyptic number.

21122113102040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21122113102040 is an abundant number, since it is smaller than the sum of its proper divisors (26892587308840).

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

21122113102040 is a wasteful number, since it uses less digits than its factorization.

21122113102040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443843691 (or 5443843687 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21122113102040 its reverse (4020131122112), we get a palindrome (25142244224152).

The spelling of 21122113102040 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred thirteen million, one hundred two thousand, forty".