102221220000122 has 4 divisors (see below), whose sum is σ = 153331830000186. Its totient is φ = 51110610000060.

The previous prime is 102221220000113. The next prime is 102221220000217. The reversal of 102221220000122 is 221000022122201.

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., 68796391220881 + 33424828779241 = 8294359^2 + 5781421^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102221220000122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555305000029 + ... + 25555305000032.

Almost surely, 2^{102221220000122} is an apocalyptic number.

102221220000122 is a deficient number, since it is larger than the sum of its proper divisors (51110610000064).

102221220000122 is an equidigital number, since it uses as much as digits as its factorization.

102221220000122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51110610000063.

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

Adding to 102221220000122 its reverse (221000022122201), we get a palindrome (323221242122323).

The spelling of 102221220000122 in words is "one hundred two trillion, two hundred twenty-one billion, two hundred twenty million, one hundred twenty-two", and thus it is an aban number.