11222222056121 has 8 divisors (see below), whose sum is σ = 11614612558080. Its totient is φ = 10830192709392.

The previous prime is 11222222056103. The next prime is 11222222056151. The reversal of 11222222056121 is 12165022222211.

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 11222222056121 - 2⁶ = 11222222056057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222222056151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90225575 + ... + 90349868.

It is an arithmetic number, because the mean of its divisors is an integer number (1451826569760).

Almost surely, 2^{11222222056121} is an apocalyptic number.

It is an amenable number.

11222222056121 is a deficient number, since it is larger than the sum of its proper divisors (392390501959).

11222222056121 is a wasteful number, since it uses less digits than its factorization.

11222222056121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180577615.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 11222222056121 its reverse (12165022222211), we get a palindrome (23387244278332).

The spelling of 11222222056121 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, fifty-six thousand, one hundred twenty-one".