22435455021 has 48 divisors (see below), whose sum is σ = 35271165888. Its totient is φ = 12646368000.

The previous prime is 22435455011. The next prime is 22435455023. The reversal of 22435455021 is 12055453422.

It is a happy number.

It is not a de Polignac number, because 22435455021 - 2⁷ = 22435454893 is a prime.

It is a super-2 number, since 2×22435455021² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22435455023) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12456321 + ... + 12458121.

It is an arithmetic number, because the mean of its divisors is an integer number (734815956).

Almost surely, 2^22435455021 is an apocalyptic number.

22435455021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22435455021 is a deficient number, since it is larger than the sum of its proper divisors (12835710867).

22435455021 is a wasteful number, since it uses less digits than its factorization.

22435455021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922 (or 2915 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 33.

The spelling of 22435455021 in words is "twenty-two billion, four hundred thirty-five million, four hundred fifty-five thousand, twenty-one".