102212112123201 has 4 divisors (see below), whose sum is σ = 136282816164272. Its totient is φ = 68141408082132.

The previous prime is 102212112123197. The next prime is 102212112123227. The reversal of 102212112123201 is 102321211212201.

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 102212112123201 - 2² = 102212112123197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102212112121201) 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, 17035352020531 + ... + 17035352020536.

It is an arithmetic number, because the mean of its divisors is an integer number (34070704041068).

Almost surely, 2^{102212112123201} is an apocalyptic number.

It is an amenable number.

102212112123201 is a deficient number, since it is larger than the sum of its proper divisors (34070704041071).

102212112123201 is an equidigital number, since it uses as much as digits as its factorization.

102212112123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34070704041070.

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

Adding to 102212112123201 its reverse (102321211212201), we get a palindrome (204533323335402).

The spelling of 102212112123201 in words is "one hundred two trillion, two hundred twelve billion, one hundred twelve million, one hundred twenty-three thousand, two hundred one".