102010200221 has 16 divisors (see below), whose sum is σ = 108903352320. Its totient is φ = 95216808960.

The previous prime is 102010200217. The next prime is 102010200247. The reversal of 102010200221 is 122002010201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 102010200221 - 2² = 102010200217 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 (102010200211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6730670 + ... + 6745808.

It is an arithmetic number, because the mean of its divisors is an integer number (6806459520).

Almost surely, 2^102010200221 is an apocalyptic number.

It is an amenable number.

102010200221 is a deficient number, since it is larger than the sum of its proper divisors (6893152099).

102010200221 is a wasteful number, since it uses less digits than its factorization.

102010200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102010200221 its reverse (122002010201), we get a palindrome (224012210422).

The spelling of 102010200221 in words is "one hundred two billion, ten million, two hundred thousand, two hundred twenty-one".