100431222 has 32 divisors (see below), whose sum is σ = 206406144. Its totient is φ = 32558400.

The previous prime is 100431211. The next prime is 100431229. The reversal of 100431222 is 222134001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100431229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154903 + ... + 155549.

It is an arithmetic number, because the mean of its divisors is an integer number (6450192).

Almost surely, 2^100431222 is an apocalyptic number.

100431222 is an abundant number, since it is smaller than the sum of its proper divisors (105974922).

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

100431222 is a wasteful number, since it uses less digits than its factorization.

100431222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 100431222 is about 10021.5379059304. The cubic root of 100431222 is about 464.8251117093.

Adding to 100431222 its reverse (222134001), we get a palindrome (322565223).

The spelling of 100431222 in words is "one hundred million, four hundred thirty-one thousand, two hundred twenty-two".