22121234200143 has 24 divisors (see below), whose sum is σ = 34924402928688. Its totient is φ = 13409887087872.

The previous prime is 22121234200139. The next prime is 22121234200151. The reversal of 22121234200143 is 34100243212122.

22121234200143 is a `hidden beast` number, since 2 + 21 + 212 + 3 + 420 + 0 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 22121234200143 - 2² = 22121234200139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121234200543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1410965130 + ... + 1410980807.

It is an arithmetic number, because the mean of its divisors is an integer number (1455183455362).

Almost surely, 2^{22121234200143} is an apocalyptic number.

22121234200143 is a deficient number, since it is larger than the sum of its proper divisors (12803168728545).

22121234200143 is a wasteful number, since it uses less digits than its factorization.

22121234200143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2821946023 (or 2821946020 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 22121234200143 its reverse (34100243212122), we get a palindrome (56221477412265).

The spelling of 22121234200143 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred thirty-four million, two hundred thousand, one hundred forty-three".