1222022112121 has 8 divisors (see below), whose sum is σ = 1235072344320. Its totient is φ = 1209002055408.

The previous prime is 1222022112049. The next prime is 1222022112191. The reversal of 1222022112121 is 1212112202221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222022112121 - 2²⁷ = 1221887894393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222022112191) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7462441 + ... + 7624438.

It is an arithmetic number, because the mean of its divisors is an integer number (154384043040).

Almost surely, 2^{1222022112121} is an apocalyptic number.

It is an amenable number.

1222022112121 is a deficient number, since it is larger than the sum of its proper divisors (13050232199).

1222022112121 is a wasteful number, since it uses less digits than its factorization.

1222022112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087743.

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

Adding to 1222022112121 its reverse (1212112202221), we get a palindrome (2434134314342).

The spelling of 1222022112121 in words is "one trillion, two hundred twenty-two billion, twenty-two million, one hundred twelve thousand, one hundred twenty-one".