100031222 has 16 divisors (see below), whose sum is σ = 152409600. Its totient is φ = 49232040.

The previous prime is 100031189. The next prime is 100031263. The reversal of 100031222 is 222130001.

It is a happy number.

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, 65447 + ... + 66957.

It is an arithmetic number, because the mean of its divisors is an integer number (9525600).

Almost surely, 2^100031222 is an apocalyptic number.

100031222 is a deficient number, since it is larger than the sum of its proper divisors (52378378).

100031222 is a wasteful number, since it uses less digits than its factorization.

100031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 100031222 is about 10001.5609781674. The cubic root of 100031222 is about 464.2071848969.

Adding to 100031222 its reverse (222130001), we get a palindrome (322161223).

The spelling of 100031222 in words is "one hundred million, thirty-one thousand, two hundred twenty-two".