222122211011100 has 432 divisors, whose sum is σ = 725439267352800. Its totient is φ = 56798312693760.

The previous prime is 222122211011053. The next prime is 222122211011147. The reversal of 222122211011100 is 1110112221222.

222122211011100 is a `hidden beast` number, since 2 + 221 + 222 + 110 + 1 + 110 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (222122211011053) and next prime (222122211011147).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 909733836 + ... + 909977964.

Almost surely, 2^{222122211011100} is an apocalyptic number.

222122211011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222122211011100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362719633676400).

222122211011100 is an abundant number, since it is smaller than the sum of its proper divisors (503317056341700).

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

222122211011100 is a wasteful number, since it uses less digits than its factorization.

222122211011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244582 (or 244572 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 222122211011100 its reverse (1110112221222), we get a palindrome (223232323232322).

The spelling of 222122211011100 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, two hundred eleven million, eleven thousand, one hundred".