102112210120101 has 4 divisors (see below), whose sum is σ = 136149613493472. Its totient is φ = 68074806746732.

The previous prime is 102112210120091. The next prime is 102112210120139. The reversal of 102112210120101 is 101021012211201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102112210120101 - 2¹⁷ = 102112209989029 is a prime.

It is a super-2 number, since 2×102112210120101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112210127101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17018701686681 + ... + 17018701686686.

It is an arithmetic number, because the mean of its divisors is an integer number (34037403373368).

Almost surely, 2^{102112210120101} is an apocalyptic number.

It is an amenable number.

102112210120101 is a deficient number, since it is larger than the sum of its proper divisors (34037403373371).

102112210120101 is an equidigital number, since it uses as much as digits as its factorization.

102112210120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34037403373370.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102112210120101 its reverse (101021012211201), we get a palindrome (203133222331302).

The spelling of 102112210120101 in words is "one hundred two trillion, one hundred twelve billion, two hundred ten million, one hundred twenty thousand, one hundred one".