222211012100 has 144 divisors (see below), whose sum is σ = 601952722560. Its totient is φ = 69171763200.

The previous prime is 222211012057. The next prime is 222211012129. The reversal of 222211012100 is 1210112222.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6118796 + ... + 6155004.

It is an arithmetic number, because the mean of its divisors is an integer number (4180227240).

Almost surely, 2^222211012100 is an apocalyptic number.

222211012100 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 222211012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300976361280).

222211012100 is an abundant number, since it is smaller than the sum of its proper divisors (379741710460).

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

222211012100 is a wasteful number, since it uses less digits than its factorization.

222211012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37038 (or 37031 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222211012100 its reverse (1210112222), we get a palindrome (223421124322).

The spelling of 222211012100 in words is "two hundred twenty-two billion, two hundred eleven million, twelve thousand, one hundred".