102202210221002 has 4 divisors (see below), whose sum is σ = 153303315331506. Its totient is φ = 51101105110500.

The previous prime is 102202210220993. The next prime is 102202210221043. The reversal of 102202210221002 is 200122012202201.

It is a happy number.

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., 55034008717081 + 47168201503921 = 7418491^2 + 6867911^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25550552555249 + ... + 25550552555252.

Almost surely, 2^{102202210221002} is an apocalyptic number.

102202210221002 is a deficient number, since it is larger than the sum of its proper divisors (51101105110504).

102202210221002 is an equidigital number, since it uses as much as digits as its factorization.

102202210221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51101105110503.

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

Adding to 102202210221002 its reverse (200122012202201), we get a palindrome (302324222423203).

The spelling of 102202210221002 in words is "one hundred two trillion, two hundred two billion, two hundred ten million, two hundred twenty-one thousand, two".