102221002210 has 24 divisors (see below), whose sum is σ = 195457880340. Its totient is φ = 38483199744.

The previous prime is 102221002171. The next prime is 102221002211. The reversal of 102221002210 is 12200122201.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 42270948801 + 59950053409 = 205599^2 + 244847^2 .

It is not an unprimeable number, because it can be changed into a prime (102221002211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17682405 + ... + 17688184.

Almost surely, 2^102221002210 is an apocalyptic number.

102221002210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102221002210 is a deficient number, since it is larger than the sum of its proper divisors (93236878130).

102221002210 is a wasteful number, since it uses less digits than its factorization.

102221002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35370630 (or 35370613 counting only the distinct ones).

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

Adding to 102221002210 its reverse (12200122201), we get a palindrome (114421124411).

The spelling of 102221002210 in words is "one hundred two billion, two hundred twenty-one million, two thousand, two hundred ten".