102221121122 has 4 divisors (see below), whose sum is σ = 153331681686. Its totient is φ = 51110560560.

The previous prime is 102221121113. The next prime is 102221121161. The reversal of 102221121122 is 221121122201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221121122201 = 7 ⋅31588731743.

It can be written as a sum of positive squares in only one way, i.e., 102215123521 + 5997601 = 319711^2 + 2449^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102221121122.

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, 25555280279 + ... + 25555280282.

Almost surely, 2^102221121122 is an apocalyptic number.

102221121122 is a deficient number, since it is larger than the sum of its proper divisors (51110560564).

102221121122 is an equidigital number, since it uses as much as digits as its factorization.

102221121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51110560563.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102221121122 its reverse (221121122201), we get a palindrome (323342243323).

The spelling of 102221121122 in words is "one hundred two billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred twenty-two".