102021222002101 has 4 divisors (see below), whose sum is σ = 102021380157312. Its totient is φ = 102021063846892.

The previous prime is 102021222002083. The next prime is 102021222002111. The reversal of 102021222002101 is 101200222120201.

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 102021222002101 - 2⁵ = 102021222002069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021222002111) 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, 78106021 + ... + 79401466.

It is an arithmetic number, because the mean of its divisors is an integer number (25505345039328).

Almost surely, 2^{102021222002101} is an apocalyptic number.

It is an amenable number.

102021222002101 is a deficient number, since it is larger than the sum of its proper divisors (158155211).

102021222002101 is an equidigital number, since it uses as much as digits as its factorization.

102021222002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158155210.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102021222002101 its reverse (101200222120201), we get a palindrome (203221444122302).

The spelling of 102021222002101 in words is "one hundred two trillion, twenty-one billion, two hundred twenty-two million, two thousand, one hundred one".