222100140 has 48 divisors (see below), whose sum is σ = 626798592. Its totient is φ = 58758336.

The previous prime is 222100129. The next prime is 222100169. The reversal of 222100140 is 41001222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6954 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (13058304).

Almost surely, 2^222100140 is an apocalyptic number.

222100140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222100140 is an abundant number, since it is smaller than the sum of its proper divisors (404698452).

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

222100140 is a wasteful number, since it uses less digits than its factorization.

222100140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29286 (or 29284 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 222100140 is about 14903.0245252432. The cubic root of 222100140 is about 605.5959248993.

Adding to 222100140 its reverse (41001222), we get a palindrome (263101362).

The spelling of 222100140 in words is "two hundred twenty-two million, one hundred thousand, one hundred forty".