102112231221201 has 4 divisors (see below), whose sum is σ = 136149641628272. Its totient is φ = 68074820814132.

The previous prime is 102112231221179. The next prime is 102112231221263. The reversal of 102112231221201 is 102122132211201.

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 not a de Polignac number, because 102112231221201 - 2⁶ = 102112231221137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102112231221271) 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, 17018705203531 + ... + 17018705203536.

It is an arithmetic number, because the mean of its divisors is an integer number (34037410407068).

Almost surely, 2^{102112231221201} is an apocalyptic number.

It is an amenable number.

102112231221201 is a deficient number, since it is larger than the sum of its proper divisors (34037410407071).

102112231221201 is an equidigital number, since it uses as much as digits as its factorization.

102112231221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34037410407070.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 102112231221201 its reverse (102122132211201), we get a palindrome (204234363432402).

The spelling of 102112231221201 in words is "one hundred two trillion, one hundred twelve billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred one".