102021111122201 has 4 divisors (see below), whose sum is σ = 102146907807504. Its totient is φ = 101895314436900.

The previous prime is 102021111122167. The next prime is 102021111122209. The reversal of 102021111122201 is 102221111120201.

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 102021111122201 - 2²⁶ = 102021044013337 is a prime.

It is a super-2 number, since 2×102021111122201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102021111122201.

It is not an unprimeable number, because it can be changed into a prime (102021111122209) 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, 62898341435 + ... + 62898343056.

It is an arithmetic number, because the mean of its divisors is an integer number (25536726951876).

Almost surely, 2^{102021111122201} is an apocalyptic number.

It is an amenable number.

102021111122201 is a deficient number, since it is larger than the sum of its proper divisors (125796685303).

102021111122201 is an equidigital number, since it uses as much as digits as its factorization.

102021111122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125796685302.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 102021111122201 its reverse (102221111120201), we get a palindrome (204242222242402).

The spelling of 102021111122201 in words is "one hundred two trillion, twenty-one billion, one hundred eleven million, one hundred twenty-two thousand, two hundred one".