222212220102 has 160 divisors (see below), whose sum is σ = 528758461440. Its totient is φ = 69607486080.

The previous prime is 222212220073. The next prime is 222212220143. The reversal of 222212220102 is 201022212222.

222212220102 is a `hidden beast` number, since 222 + 212 + 220 + 10 + 2 = 666.

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 79 ways as a sum of consecutive naturals, for example, 54051027 + ... + 54055137.

It is an arithmetic number, because the mean of its divisors is an integer number (3304740384).

Almost surely, 2^222212220102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222212220102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264379230720).

222212220102 is an abundant number, since it is smaller than the sum of its proper divisors (306546241338).

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

222212220102 is a wasteful number, since it uses less digits than its factorization.

222212220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400 (or 4391 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 222212220102 its reverse (201022212222), we get a palindrome (423234432324).

The spelling of 222212220102 in words is "two hundred twenty-two billion, two hundred twelve million, two hundred twenty thousand, one hundred two".