221102112111202 has 32 divisors (see below), whose sum is σ = 379405088360064. Its totient is φ = 94664845996800.

The previous prime is 221102112111193. The next prime is 221102112111211. The reversal of 221102112111202 is 202111211201122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221102112111193) and next prime (221102112111211).

It is a super-2 number, since 2×221102112111202² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 221102112111202.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120298698 + ... + 122122810.

It is an arithmetic number, because the mean of its divisors is an integer number (11856409011252).

Almost surely, 2^{221102112111202} is an apocalyptic number.

221102112111202 is a deficient number, since it is larger than the sum of its proper divisors (158302976248862).

221102112111202 is a wasteful number, since it uses less digits than its factorization.

221102112111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1832634.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 221102112111202 its reverse (202111211201122), we get a palindrome (423213323312324).

The spelling of 221102112111202 in words is "two hundred twenty-one trillion, one hundred two billion, one hundred twelve million, one hundred eleven thousand, two hundred two".