221102012211102 has 96 divisors (see below), whose sum is σ = 548490133376640. Its totient is φ = 66193373365920.

The previous prime is 221102012211037. The next prime is 221102012211127. The reversal of 221102012211102 is 201112210201122.

221102012211102 is a `hidden beast` number, since 22 + 110 + 201 + 221 + 110 + 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 47 ways as a sum of consecutive naturals, for example, 248703277 + ... + 249590712.

It is an arithmetic number, because the mean of its divisors is an integer number (5713438889340).

Almost surely, 2^{221102012211102} is an apocalyptic number.

221102012211102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221102012211102 is an abundant number, since it is smaller than the sum of its proper divisors (327388121165538).

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

221102012211102 is a wasteful number, since it uses less digits than its factorization.

221102012211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498294100 (or 498294088 counting only the distinct ones).

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

Adding to 221102012211102 its reverse (201112210201122), we get a palindrome (422214222412224).

The spelling of 221102012211102 in words is "two hundred twenty-one trillion, one hundred two billion, twelve million, two hundred eleven thousand, one hundred two".