1222112000121 has 4 divisors (see below), whose sum is σ = 1629482666832. Its totient is φ = 814741333412.

The previous prime is 1222112000089. The next prime is 1222112000129. The reversal of 1222112000121 is 1210002112221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1222112000121 - 2⁵ = 1222112000089 is a prime.

It is a super-3 number, since 3×1222112000121³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1222112000121.

It is not an unprimeable number, because it can be changed into a prime (1222112000129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203685333351 + ... + 203685333356.

It is an arithmetic number, because the mean of its divisors is an integer number (407370666708).

Almost surely, 2^{1222112000121} is an apocalyptic number.

It is an amenable number.

1222112000121 is a deficient number, since it is larger than the sum of its proper divisors (407370666711).

1222112000121 is an equidigital number, since it uses as much as digits as its factorization.

1222112000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407370666710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1222112000121 its reverse (1210002112221), we get a palindrome (2432114112342).

The spelling of 1222112000121 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twenty-one", and thus it is an aban number.