102221222201021 has 32 divisors (see below), whose sum is σ = 128728046589696. Its totient is φ = 78851036160000.

The previous prime is 102221222201017. The next prime is 102221222201039. The reversal of 102221222201021 is 120102222122201.

It is a cyclic number.

It is not a de Polignac number, because 102221222201021 - 2² = 102221222201017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221222200984 and 102221222201002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102221222201221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45415421 + ... + 47613053.

It is an arithmetic number, because the mean of its divisors is an integer number (4022751455928).

Almost surely, 2^{102221222201021} is an apocalyptic number.

102221222201021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102221222201021 is a deficient number, since it is larger than the sum of its proper divisors (26506824388675).

102221222201021 is a wasteful number, since it uses less digits than its factorization.

102221222201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203733.

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

Adding to 102221222201021 its reverse (120102222122201), we get a palindrome (222323444323222).

The spelling of 102221222201021 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred one thousand, twenty-one".