102202011222221 has 8 divisors (see below), whose sum is σ = 102731893611840. Its totient is φ = 101672132320512.

The previous prime is 102202011222209. The next prime is 102202011222253. The reversal of 102202011222221 is 122222110202201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102202011222221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102202011222193 and 102202011222202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102202011227221) 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, 74910266 + ... + 76262388.

It is an arithmetic number, because the mean of its divisors is an integer number (12841486701480).

Almost surely, 2^{102202011222221} is an apocalyptic number.

It is an amenable number.

102202011222221 is a deficient number, since it is larger than the sum of its proper divisors (529882389619).

102202011222221 is a wasteful number, since it uses less digits than its factorization.

102202011222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743955.

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

Adding to 102202011222221 its reverse (122222110202201), we get a palindrome (224424121424422).

The spelling of 102202011222221 in words is "one hundred two trillion, two hundred two billion, eleven million, two hundred twenty-two thousand, two hundred twenty-one".