102221101121122 has 4 divisors (see below), whose sum is σ = 153331651681686. Its totient is φ = 51110550560560.

The previous prime is 102221101121093. The next prime is 102221101121123. The reversal of 102221101121122 is 221121101122201.

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., 67116056768721 + 35105044352401 = 8192439^2 + 5924951^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102221101121122.

It is not an unprimeable number, because it can be changed into a prime (102221101121123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555275280279 + ... + 25555275280282.

Almost surely, 2^{102221101121122} is an apocalyptic number.

102221101121122 is a deficient number, since it is larger than the sum of its proper divisors (51110550560564).

102221101121122 is an equidigital number, since it uses as much as digits as its factorization.

102221101121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51110550560563.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102221101121122 its reverse (221121101122201), we get a palindrome (323342202243323).

The spelling of 102221101121122 in words is "one hundred two trillion, two hundred twenty-one billion, one hundred one million, one hundred twenty-one thousand, one hundred twenty-two".