100231222 has 16 divisors (see below), whose sum is σ = 185042592. Its totient is φ = 39651840.

The previous prime is 100231211. The next prime is 100231231. The reversal of 100231222 is 222132001.

It is a super-2 number, since 2×100231222² = 20092595727226568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275179 + ... + 275542.

It is an arithmetic number, because the mean of its divisors is an integer number (11565162).

Almost surely, 2^100231222 is an apocalyptic number.

100231222 is a deficient number, since it is larger than the sum of its proper divisors (84811370).

100231222 is a wasteful number, since it uses less digits than its factorization.

100231222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550743.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100231222 is about 10011.5544247634. The cubic root of 100231222 is about 464.5163538037.

Adding to 100231222 its reverse (222132001), we get a palindrome (322363223).

The spelling of 100231222 in words is "one hundred million, two hundred thirty-one thousand, two hundred twenty-two".