10222112121111 has 48 divisors (see below), whose sum is σ = 16142787198720. Its totient is φ = 6181689260160.

The previous prime is 10222112121101. The next prime is 10222112121227. The reversal of 10222112121111 is 11112121122201.

It is a happy number.

10222112121111 is a `hidden beast` number, since 102 + 221 + 121 + 211 + 11 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-10222112121111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222112121101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85076700 + ... + 85196766.

It is an arithmetic number, because the mean of its divisors is an integer number (336308066640).

Almost surely, 2^{10222112121111} is an apocalyptic number.

10222112121111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10222112121111 is a deficient number, since it is larger than the sum of its proper divisors (5920675077609).

10222112121111 is a wasteful number, since it uses less digits than its factorization.

10222112121111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121956 (or 121953 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 10222112121111 its reverse (11112121122201), we get a palindrome (21334233243312).

The spelling of 10222112121111 in words is "ten trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, one hundred eleven".