22450101012520 has 32 divisors (see below), whose sum is σ = 50512867569000. Its totient is φ = 8980015464448.

The previous prime is 22450101012517. The next prime is 22450101012529. The reversal of 22450101012520 is 2521010105422.

It can be written as a sum of positive squares in 4 ways, for example, as 8497679746084 + 13952421266436 = 2915078^2 + 3735294^2 .

It is not an unprimeable number, because it can be changed into a prime (22450101012529) 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, 22080792 + ... + 23075128.

Almost surely, 2^{22450101012520} is an apocalyptic number.

22450101012520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22450101012520 is an abundant number, since it is smaller than the sum of its proper divisors (28062766556480).

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

22450101012520 is a wasteful number, since it uses less digits than its factorization.

22450101012520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558797 (or 1558793 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 22450101012520 its reverse (2521010105422), we get a palindrome (24971111117942).

The spelling of 22450101012520 in words is "twenty-two trillion, four hundred fifty billion, one hundred one million, twelve thousand, five hundred twenty".