10111222221102 has 24 divisors (see below), whose sum is σ = 22499746745736. Its totient is φ = 3279315314736.

The previous prime is 10111222221083. The next prime is 10111222221137. The reversal of 10111222221102 is 20112222211101.

10111222221102 is a `hidden beast` number, since 10 + 111 + 222 + 221 + 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, 7591007008 + ... + 7591008339.

It is an arithmetic number, because the mean of its divisors is an integer number (937489447739).

Almost surely, 2^{10111222221102} is an apocalyptic number.

10111222221102 is an abundant number, since it is smaller than the sum of its proper divisors (12388524524634).

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

10111222221102 is a wasteful number, since it uses less digits than its factorization.

10111222221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15182015392 (or 15182015389 counting only the distinct ones).

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

Adding to 10111222221102 its reverse (20112222211101), we get a palindrome (30223444432203).

The spelling of 10111222221102 in words is "ten trillion, one hundred eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred two".