100444222 has 24 divisors (see below), whose sum is σ = 161816760. Its totient is φ = 46631520.

The previous prime is 100444213. The next prime is 100444249. The reversal of 100444222 is 222444001.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 100444222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106272 + ... + 107212.

It is an arithmetic number, because the mean of its divisors is an integer number (6742365).

Almost surely, 2^100444222 is an apocalyptic number.

100444222 is a deficient number, since it is larger than the sum of its proper divisors (61372538).

100444222 is an equidigital number, since it uses as much as digits as its factorization.

100444222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068 (or 1015 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 100444222 is about 10022.1864879875. The cubic root of 100444222 is about 464.8451667799.

Adding to 100444222 its reverse (222444001), we get a palindrome (322888223).

The spelling of 100444222 in words is "one hundred million, four hundred forty-four thousand, two hundred twenty-two".