102022012221021 has 16 divisors (see below), whose sum is σ = 156019325739520. Its totient is φ = 65820653045280.

The previous prime is 102022012220969. The next prime is 102022012221037. The reversal of 102022012221021 is 120122210220201.

It is a happy number.

102022012221021 is a `hidden beast` number, since 10 + 202 + 201 + 22 + 210 + 21 = 666.

It is not a de Polignac number, because 102022012221021 - 2⁷ = 102022012220893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102022012220985 and 102022012221003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022012221071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60945048280 + ... + 60945049953.

It is an arithmetic number, because the mean of its divisors is an integer number (9751207858720).

Almost surely, 2^{102022012221021} is an apocalyptic number.

It is an amenable number.

102022012221021 is a deficient number, since it is larger than the sum of its proper divisors (53997313518499).

102022012221021 is a wasteful number, since it uses less digits than its factorization.

102022012221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121890098273 (or 121890098267 counting only the distinct ones).

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

Adding to 102022012221021 its reverse (120122210220201), we get a palindrome (222144222441222).

The spelling of 102022012221021 in words is "one hundred two trillion, twenty-two billion, twelve million, two hundred twenty-one thousand, twenty-one".