22143460120400 has 60 divisors (see below), whose sum is σ = 53370723248544. Its totient is φ = 8828903664000.

The previous prime is 22143460120393. The next prime is 22143460120447. The reversal of 22143460120400 is 402106434122.

It is a super-2 number, since 2×22143460120400² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88876646 + ... + 89125445.

Almost surely, 2^{22143460120400} is an apocalyptic number.

22143460120400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22143460120400 is an abundant number, since it is smaller than the sum of its proper divisors (31227263128144).

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

22143460120400 is a wasteful number, since it uses less digits than its factorization.

22143460120400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178002420 (or 178002409 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 22143460120400 its reverse (402106434122), we get a palindrome (22545566554522).

The spelling of 22143460120400 in words is "twenty-two trillion, one hundred forty-three billion, four hundred sixty million, one hundred twenty thousand, four hundred".