22408615870021 has 8 divisors (see below), whose sum is σ = 22544405231040. Its totient is φ = 22272845628768.

The previous prime is 22408615869979. The next prime is 22408615870031. The reversal of 22408615870021 is 12007851680422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22408615870021 - 2²¹ = 22408613772869 is a prime.

It is a super-4 number, since 4×22408615870021⁴ (a number of 55 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22408615870031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2425311 + ... + 7120348.

It is an arithmetic number, because the mean of its divisors is an integer number (2818050653880).

Almost surely, 2^{22408615870021} is an apocalyptic number.

It is an amenable number.

22408615870021 is a deficient number, since it is larger than the sum of its proper divisors (135789361019).

22408615870021 is a wasteful number, since it uses less digits than its factorization.

22408615870021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9559883.

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 22408615870021 in words is "twenty-two trillion, four hundred eight billion, six hundred fifteen million, eight hundred seventy thousand, twenty-one".