102235251133221 has 4 divisors (see below), whose sum is σ = 136313668177632. Its totient is φ = 68156834088812.

The previous prime is 102235251133157. The next prime is 102235251133243. The reversal of 102235251133221 is 122331152532201.

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 102235251133221 - 2⁶ = 102235251133157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102235251133261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17039208522201 + ... + 17039208522206.

It is an arithmetic number, because the mean of its divisors is an integer number (34078417044408).

Almost surely, 2^{102235251133221} is an apocalyptic number.

It is an amenable number.

102235251133221 is a deficient number, since it is larger than the sum of its proper divisors (34078417044411).

102235251133221 is an equidigital number, since it uses as much as digits as its factorization.

102235251133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34078417044410.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 102235251133221 in words is "one hundred two trillion, two hundred thirty-five billion, two hundred fifty-one million, one hundred thirty-three thousand, two hundred twenty-one".