102210220202 has 4 divisors (see below), whose sum is σ = 153315330306. Its totient is φ = 51105110100.

The previous prime is 102210220183. The next prime is 102210220223. The reversal of 102210220202 is 202022012201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52258417201 + 49951803001 = 228601^2 + 223499^2 .

It is a super-2 number, since 2×102210220202² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25552555049 + ... + 25552555052.

Almost surely, 2^102210220202 is an apocalyptic number.

102210220202 is a deficient number, since it is larger than the sum of its proper divisors (51105110104).

102210220202 is an equidigital number, since it uses as much as digits as its factorization.

102210220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51105110103.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102210220202 its reverse (202022012201), we get a palindrome (304232232403).

The spelling of 102210220202 in words is "one hundred two billion, two hundred ten million, two hundred twenty thousand, two hundred two".