221200102010 has 32 divisors (see below), whose sum is σ = 403319734272. Its totient is φ = 87335392320.

The previous prime is 221200101977. The next prime is 221200102021. The reversal of 221200102010 is 10201002122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 221200101982 and 221200102000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 807815 + ... + 1046405.

It is an arithmetic number, because the mean of its divisors is an integer number (12603741696).

Almost surely, 2^221200102010 is an apocalyptic number.

221200102010 is a deficient number, since it is larger than the sum of its proper divisors (182119632262).

221200102010 is a wasteful number, since it uses less digits than its factorization.

221200102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239798.

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

Adding to 221200102010 its reverse (10201002122), we get a palindrome (231401104132).

The spelling of 221200102010 in words is "two hundred twenty-one billion, two hundred million, one hundred two thousand, ten".