4312221112100 has 72 divisors (see below), whose sum is σ = 10745477349600. Its totient is φ = 1485549849600.

The previous prime is 4312221112049. The next prime is 4312221112109. The reversal of 4312221112100 is 12111222134.

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 (4312221112109) 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, 103142285 + ... + 103184084.

Almost surely, 2^{4312221112100} is an apocalyptic number.

It is an amenable number.

4312221112100 is an abundant number, since it is smaller than the sum of its proper divisors (6433256237500).

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

4312221112100 is a wasteful number, since it uses less digits than its factorization.

4312221112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206326413 (or 206326406 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 4312221112100 its reverse (12111222134), we get a palindrome (4324332334234).

The spelling of 4312221112100 in words is "four trillion, three hundred twelve billion, two hundred twenty-one million, one hundred twelve thousand, one hundred".