222121021011102 has 24 divisors (see below), whose sum is σ = 482207717539080. Its totient is φ = 73894877975760.

The previous prime is 222121021011061. The next prime is 222121021011119. The reversal of 222121021011102 is 201110120121222.

222121021011102 is a `hidden beast` number, since 2 + 221 + 210 + 210 + 11 + 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 11 ways as a sum of consecutive naturals, for example, 12121854024 + ... + 12121872347.

It is an arithmetic number, because the mean of its divisors is an integer number (20091988230795).

Almost surely, 2^{222121021011102} is an apocalyptic number.

222121021011102 is an abundant number, since it is smaller than the sum of its proper divisors (260086696527978).

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

222121021011102 is a wasteful number, since it uses less digits than its factorization.

222121021011102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24243726888 (or 24243726885 counting only the distinct ones).

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

Adding to 222121021011102 its reverse (201110120121222), we get a palindrome (423231141132324).

The spelling of 222121021011102 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, twenty-one million, eleven thousand, one hundred two".