221220101121102 has 24 divisors (see below), whose sum is σ = 484055864833320. Its totient is φ = 73009934362800.

The previous prime is 221220101121023. The next prime is 221220101121127. The reversal of 221220101121102 is 201121101022122.

221220101121102 is a `hidden beast` number, since 221 + 220 + 1 + 0 + 1 + 121 + 102 = 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, 60841610152 + ... + 60841613787.

It is an arithmetic number, because the mean of its divisors is an integer number (20168994368055).

Almost surely, 2^{221220101121102} is an apocalyptic number.

221220101121102 is an abundant number, since it is smaller than the sum of its proper divisors (262835763712218).

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

221220101121102 is a wasteful number, since it uses less digits than its factorization.

221220101121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121683224048 (or 121683224045 counting only the distinct ones).

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

Adding to 221220101121102 its reverse (201121101022122), we get a palindrome (422341202143224).

The spelling of 221220101121102 in words is "two hundred twenty-one trillion, two hundred twenty billion, one hundred one million, one hundred twenty-one thousand, one hundred two".