102222010212221 has 4 divisors (see below), whose sum is σ = 104599266263712. Its totient is φ = 99844754160732.

The previous prime is 102222010212211. The next prime is 102222010212227. The reversal of 102222010212221 is 122212010222201.

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 102222010212221 - 2¹⁰ = 102222010211197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102222010212193 and 102222010212202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222010212227) 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, 1188628025681 + ... + 1188628025766.

It is an arithmetic number, because the mean of its divisors is an integer number (26149816565928).

Almost surely, 2^{102222010212221} is an apocalyptic number.

It is an amenable number.

102222010212221 is a deficient number, since it is larger than the sum of its proper divisors (2377256051491).

102222010212221 is an equidigital number, since it uses as much as digits as its factorization.

102222010212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377256051490.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102222010212221 its reverse (122212010222201), we get a palindrome (224434020434422).

The spelling of 102222010212221 in words is "one hundred two trillion, two hundred twenty-two billion, ten million, two hundred twelve thousand, two hundred twenty-one".