121222102001122 has 24 divisors (see below), whose sum is σ = 193016301178716. Its totient is φ = 57089082356064.

The previous prime is 121222102001071. The next prime is 121222102001131. The reversal of 121222102001122 is 221100201222121.

It can be written as a sum of positive squares in 2 ways, for example, as 120537145481481 + 684956519641 = 10978941^2 + 827621^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 121222102001122.

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 in 11 ways as a sum of consecutive naturals, for example, 485128413 + ... + 485378224.

Almost surely, 2^{121222102001122} is an apocalyptic number.

121222102001122 is a deficient number, since it is larger than the sum of its proper divisors (71794199177594).

121222102001122 is a wasteful number, since it uses less digits than its factorization.

121222102001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970506850 (or 970506831 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121222102001122 its reverse (221100201222121), we get a palindrome (342322303223243).

The spelling of 121222102001122 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred two million, one thousand, one hundred twenty-two".