1222022000121 has 48 divisors (see below), whose sum is σ = 1770747094656. Its totient is φ = 749287438848.

The previous prime is 1222022000047. The next prime is 1222022000137. The reversal of 1222022000121 is 1210002202221.

It is not a de Polignac number, because 1222022000121 - 2⁹ = 1222021999609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222022000121.

It is not an unprimeable number, because it can be changed into a prime (1222022000191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179099916 + ... + 179106738.

It is an arithmetic number, because the mean of its divisors is an integer number (36890564472).

Almost surely, 2^{1222022000121} is an apocalyptic number.

It is an amenable number.

1222022000121 is a deficient number, since it is larger than the sum of its proper divisors (548725094535).

1222022000121 is a wasteful number, since it uses less digits than its factorization.

1222022000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8082 (or 8069 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1222022000121 its reverse (1210002202221), we get a palindrome (2432024202342).

The spelling of 1222022000121 in words is "one trillion, two hundred twenty-two billion, twenty-two million, one hundred twenty-one", and thus it is an aban number.