102222112021 has 8 divisors (see below), whose sum is σ = 113931766080. Its totient is φ = 91145412288.

The previous prime is 102222112009. The next prime is 102222112033. The reversal of 102222112021 is 120211222201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102222112009) and next prime (102222112033).

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 102222112021 - 2¹⁹ = 102221587733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102222111986 and 102222112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222118021) 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, 158238241 + ... + 158238886.

It is an arithmetic number, because the mean of its divisors is an integer number (14241470760).

Almost surely, 2^102222112021 is an apocalyptic number.

It is an amenable number.

102222112021 is a deficient number, since it is larger than the sum of its proper divisors (11709654059).

102222112021 is a wasteful number, since it uses less digits than its factorization.

102222112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316477163.

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

Adding to 102222112021 its reverse (120211222201), we get a palindrome (222433334222).

The spelling of 102222112021 in words is "one hundred two billion, two hundred twenty-two million, one hundred twelve thousand, twenty-one".