102021010222221 has 12 divisors (see below), whose sum is σ = 147442443445440. Its totient is φ = 67977655116360.

The previous prime is 102021010222207. The next prime is 102021010222231. The reversal of 102021010222221 is 122222010120201.

It is a happy number.

102021010222221 is a `hidden beast` number, since 1 + 0 + 2 + 0 + 210 + 10 + 222 + 221 = 666.

102021010222221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 102021010222221 - 2¹⁰ = 102021010221197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102021010222194 and 102021010222203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021010222231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3029290431 + ... + 3029324108.

It is an arithmetic number, because the mean of its divisors is an integer number (12286870287120).

Almost surely, 2^{102021010222221} is an apocalyptic number.

It is an amenable number.

102021010222221 is a deficient number, since it is larger than the sum of its proper divisors (45421433223219).

102021010222221 is a wasteful number, since it uses less digits than its factorization.

102021010222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058616416 (or 6058616413 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102021010222221 its reverse (122222010120201), we get a palindrome (224243020342422).

The spelling of 102021010222221 in words is "one hundred two trillion, twenty-one billion, ten million, two hundred twenty-two thousand, two hundred twenty-one".