10102112222121 has 20 divisors (see below), whose sum is σ = 15746931775872. Its totient is φ = 6441926633208.

The previous prime is 10102112222117. The next prime is 10102112222149. The reversal of 10102112222121 is 12122221120101.

10102112222121 is a `hidden beast` number, since 10 + 10 + 211 + 222 + 212 + 1 = 666.

10102112222121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10102112222121 - 2² = 10102112222117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10102112222094 and 10102112222103.

It is not an unprimeable number, because it can be changed into a prime (10102112222161) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2711246721 + ... + 2711250446.

Almost surely, 2^{10102112222121} is an apocalyptic number.

It is an amenable number.

10102112222121 is a deficient number, since it is larger than the sum of its proper divisors (5644819553751).

10102112222121 is an equidigital number, since it uses as much as digits as its factorization.

10102112222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5422497202 (or 5422497193 counting only the distinct ones).

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

Adding to 10102112222121 its reverse (12122221120101), we get a palindrome (22224333342222).

The spelling of 10102112222121 in words is "ten trillion, one hundred two billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty-one".