222212112210100 has 72 divisors (see below), whose sum is σ = 483041292675480. Its totient is φ = 88729837486080.

The previous prime is 222212112210071. The next prime is 222212112210133. The reversal of 222212112210100 is 1012211212222.

It can be written as a sum of positive squares in 12 ways, for example, as 131280401710756 + 90931710499344 = 11457766^2 + 9535812^2 .

It is a congruent number.

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, 1127372356 + ... + 1127569444.

It is an arithmetic number, because the mean of its divisors is an integer number (6708906842715).

Almost surely, 2^{222212112210100} is an apocalyptic number.

222212112210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222212112210100 is an abundant number, since it is smaller than the sum of its proper divisors (260829180465380).

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

222212112210100 is a wasteful number, since it uses less digits than its factorization.

222212112210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216709 (or 216702 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 222212112210100 its reverse (1012211212222), we get a palindrome (223224323422322).

The spelling of 222212112210100 in words is "two hundred twenty-two trillion, two hundred twelve billion, one hundred twelve million, two hundred ten thousand, one hundred".