221002100101210 has 32 divisors (see below), whose sum is σ = 402931735292160. Its totient is φ = 87261808151232.

The previous prime is 221002100101177. The next prime is 221002100101231. The reversal of 221002100101210 is 12101001200122.

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, 28661424 + ... + 35545483.

It is an arithmetic number, because the mean of its divisors is an integer number (12591616727880).

Almost surely, 2^{221002100101210} is an apocalyptic number.

221002100101210 is a deficient number, since it is larger than the sum of its proper divisors (181929635190950).

221002100101210 is a wasteful number, since it uses less digits than its factorization.

221002100101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64211350.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221002100101210 its reverse (12101001200122), we get a palindrome (233103101301332).

The spelling of 221002100101210 in words is "two hundred twenty-one trillion, two billion, one hundred million, one hundred one thousand, two hundred ten".