22143402100100 has 36 divisors (see below), whose sum is σ = 48056046705744. Its totient is φ = 8856464222880.

The previous prime is 22143402100093. The next prime is 22143402100103. The reversal of 22143402100100 is 100120434122.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (22143402100103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10214474 + ... + 12191073.

Almost surely, 2^{22143402100100} is an apocalyptic number.

22143402100100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22143402100100 is an abundant number, since it is smaller than the sum of its proper divisors (25912644605644).

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

22143402100100 is a wasteful number, since it uses less digits than its factorization.

22143402100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22415444 (or 22415437 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 22143402100100 its reverse (100120434122), we get a palindrome (22243522534222).

The spelling of 22143402100100 in words is "twenty-two trillion, one hundred forty-three billion, four hundred two million, one hundred thousand, one hundred".