222100450 has 48 divisors (see below), whose sum is σ = 485343936. Its totient is φ = 74548800.

The previous prime is 222100423. The next prime is 222100507. The reversal of 222100450 is 54001222.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8382 + ... + 22681.

It is an arithmetic number, because the mean of its divisors is an integer number (10111332).

Almost surely, 2^222100450 is an apocalyptic number.

222100450 is an abundant number, since it is smaller than the sum of its proper divisors (263243486).

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

222100450 is a wasteful number, since it uses less digits than its factorization.

222100450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31099 (or 31094 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 222100450 is about 14903.0349258129. The cubic root of 222100450 is about 605.5962066561.

Adding to 222100450 its reverse (54001222), we get a palindrome (276101672).

The spelling of 222100450 in words is "two hundred twenty-two million, one hundred thousand, four hundred fifty".