102222121021 has 8 divisors (see below), whose sum is σ = 103523002880. Its totient is φ = 100921412592.

The previous prime is 102222121019. The next prime is 102222121037. The reversal of 102222121021 is 120121222201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102222121021 - 2¹ = 102222121019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102222120986 and 102222121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222121091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1481731 + ... + 1549183.

It is an arithmetic number, because the mean of its divisors is an integer number (12940375360).

Almost surely, 2^102222121021 is an apocalyptic number.

It is an amenable number.

102222121021 is a deficient number, since it is larger than the sum of its proper divisors (1300881859).

102222121021 is an equidigital number, since it uses as much as digits as its factorization.

102222121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86715.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102222121021 its reverse (120121222201), we get a palindrome (222343343222).

The spelling of 102222121021 in words is "one hundred two billion, two hundred twenty-two million, one hundred twenty-one thousand, twenty-one".