102202121222 has 4 divisors (see below), whose sum is σ = 153303181836. Its totient is φ = 51101060610.

The previous prime is 102202121213. The next prime is 102202121257. The reversal of 102202121222 is 222121202201.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 102202121222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550530304 + ... + 25550530307.

It is an arithmetic number, because the mean of its divisors is an integer number (38325795459).

Almost surely, 2^102202121222 is an apocalyptic number.

102202121222 is a deficient number, since it is larger than the sum of its proper divisors (51101060614).

102202121222 is an equidigital number, since it uses as much as digits as its factorization.

102202121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51101060613.

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

Adding to 102202121222 its reverse (222121202201), we get a palindrome (324323323423).

The spelling of 102202121222 in words is "one hundred two billion, two hundred two million, one hundred twenty-one thousand, two hundred twenty-two".