102221212202 has 8 divisors (see below), whose sum is σ = 153559653636. Its totient is φ = 51034660992.

The previous prime is 102221212187. The next prime is 102221212297. The reversal of 102221212202 is 202212122201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 96645752641 + 5575459561 = 310879^2 + 74669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37970873 + ... + 37973564.

Almost surely, 2^102221212202 is an apocalyptic number.

102221212202 is a deficient number, since it is larger than the sum of its proper divisors (51338441434).

102221212202 is an equidigital number, since it uses as much as digits as its factorization.

102221212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75945112.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102221212202 its reverse (202212122201), we get a palindrome (304433334403).

Subtracting 102221212202 from its reverse (202212122201), we obtain a palindrome (99990909999).

The spelling of 102221212202 in words is "one hundred two billion, two hundred twenty-one million, two hundred twelve thousand, two hundred two".