102102000002221 has 64 divisors (see below), whose sum is σ = 109027963699200. Its totient is φ = 95506837171200.

The previous prime is 102102000002183. The next prime is 102102000002251. The reversal of 102102000002221 is 122200000201201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102102000002221 - 2⁹ = 102102000001709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102000002251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6974649420 + ... + 6974664058.

It is an arithmetic number, because the mean of its divisors is an integer number (1703561932800).

Almost surely, 2^{102102000002221} is an apocalyptic number.

It is an amenable number.

102102000002221 is a deficient number, since it is larger than the sum of its proper divisors (6925963696979).

102102000002221 is a wasteful number, since it uses less digits than its factorization.

102102000002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15250.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 102102000002221 its reverse (122200000201201), we get a palindrome (224302000203422).

The spelling of 102102000002221 in words is "one hundred two trillion, one hundred two billion, two thousand, two hundred twenty-one".