102222010221 has 24 divisors (see below), whose sum is σ = 146169785664. Its totient is φ = 63423233280.

The previous prime is 102222010213. The next prime is 102222010271. The reversal of 102222010221 is 122010222201.

It is not a de Polignac number, because 102222010221 - 2³ = 102222010213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102222010221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222010271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 446620 + ... + 635541.

It is an arithmetic number, because the mean of its divisors is an integer number (6090407736).

Almost surely, 2^102222010221 is an apocalyptic number.

It is an amenable number.

102222010221 is a deficient number, since it is larger than the sum of its proper divisors (43947775443).

102222010221 is a wasteful number, since it uses less digits than its factorization.

102222010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082261 (or 1082224 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102222010221 its reverse (122010222201), we get a palindrome (224232232422).

The spelling of 102222010221 in words is "one hundred two billion, two hundred twenty-two million, ten thousand, two hundred twenty-one".