22921854402238 has 8 divisors (see below), whose sum is σ = 37508489021880. Its totient is φ = 10419024728280.

The previous prime is 22921854402197. The next prime is 22921854402257. The reversal of 22921854402238 is 83220445812922.

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

It is a super-2 number, since 2×22921854402238² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520951236393 + ... + 520951236436.

It is an arithmetic number, because the mean of its divisors is an integer number (4688561127735).

Almost surely, 2^{22921854402238} is an apocalyptic number.

22921854402238 is a deficient number, since it is larger than the sum of its proper divisors (14586634619642).

22921854402238 is a wasteful number, since it uses less digits than its factorization.

22921854402238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041902472842.

The product of its (nonzero) digits is 4423680, while the sum is 52.

The spelling of 22921854402238 in words is "twenty-two trillion, nine hundred twenty-one billion, eight hundred fifty-four million, four hundred two thousand, two hundred thirty-eight".