10111221102 has 16 divisors (see below), whose sum is σ = 20768995152. Its totient is φ = 3279314880.

The previous prime is 10111221101. The next prime is 10111221119. The reversal of 10111221102 is 20112211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111221101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22772799 + ... + 22773242.

It is an arithmetic number, because the mean of its divisors is an integer number (1298062197).

Almost surely, 2^10111221102 is an apocalyptic number.

10111221102 is an abundant number, since it is smaller than the sum of its proper divisors (10657774050).

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

10111221102 is a wasteful number, since it uses less digits than its factorization.

10111221102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45546083.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10111221102 its reverse (20112211101), we get a palindrome (30223432203).

The spelling of 10111221102 in words is "ten billion, one hundred eleven million, two hundred twenty-one thousand, one hundred two".