10112122221 has 16 divisors (see below), whose sum is σ = 14650275840. Its totient is φ = 6180582960.

The previous prime is 10112122211. The next prime is 10112122261. The reversal of 10112122221 is 12222121101.

It is not a de Polignac number, because 10112122221 - 2⁶ = 10112122157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10112122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10112122211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2859615 + ... + 2863148.

It is an arithmetic number, because the mean of its divisors is an integer number (915642240).

Almost surely, 2^10112122221 is an apocalyptic number.

It is an amenable number.

10112122221 is a deficient number, since it is larger than the sum of its proper divisors (4538153619).

10112122221 is a wasteful number, since it uses less digits than its factorization.

10112122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722816.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10112122221 its reverse (12222121101), we get a palindrome (22334243322).

The spelling of 10112122221 in words is "ten billion, one hundred twelve million, one hundred twenty-two thousand, two hundred twenty-one".