2210102221 has 16 divisors (see below), whose sum is σ = 2369646576. Its totient is φ = 2054004736.

The previous prime is 2210102143. The next prime is 2210102243. The reversal of 2210102221 is 1222010122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 161544100 + 2048558121 = 12710^2 + 45261^2 .

It is not a de Polignac number, because 2210102221 - 2²⁷ = 2075884493 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 (2210102281) 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, 456405 + ... + 461221.

It is an arithmetic number, because the mean of its divisors is an integer number (148102911).

Almost surely, 2^2210102221 is an apocalyptic number.

It is an amenable number.

2210102221 is a deficient number, since it is larger than the sum of its proper divisors (159544355).

2210102221 is a wasteful number, since it uses less digits than its factorization.

2210102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5168.

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

The square root of 2210102221 is about 47011.7242929889. The cubic root of 2210102221 is about 1302.5791442017.

Adding to 2210102221 its reverse (1222010122), we get a palindrome (3432112343).

The spelling of 2210102221 in words is "two billion, two hundred ten million, one hundred two thousand, two hundred twenty-one".