10202112122111 has 12 divisors (see below), whose sum is σ = 12780667933992. Its totient is φ = 8072000799408.

The previous prime is 10202112122107. The next prime is 10202112122179. The reversal of 10202112122111 is 11122121120201.

It is not a de Polignac number, because 10202112122111 - 2² = 10202112122107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10202112122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202112122011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8007936665 + ... + 8007937938.

It is an arithmetic number, because the mean of its divisors is an integer number (1065055661166).

Almost surely, 2^{10202112122111} is an apocalyptic number.

10202112122111 is a deficient number, since it is larger than the sum of its proper divisors (2578555811881).

10202112122111 is a wasteful number, since it uses less digits than its factorization.

10202112122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16015874630 (or 16015874623 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 10202112122111 its reverse (11122121120201), we get a palindrome (21324233242312).

The spelling of 10202112122111 in words is "ten trillion, two hundred two billion, one hundred twelve million, one hundred twenty-two thousand, one hundred eleven".