11122120121 has 8 divisors (see below), whose sum is σ = 12712149120. Its totient is φ = 9532379808.

The previous prime is 11122120063. The next prime is 11122120153. The reversal of 11122120121 is 12102122111.

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

It is not a de Polignac number, because 11122120121 - 2¹⁰ = 11122119097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122120096 and 11122120105.

It is not an unprimeable number, because it can be changed into a prime (11122120921) 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, 17885 + ... + 150213.

It is an arithmetic number, because the mean of its divisors is an integer number (1589018640).

Almost surely, 2^11122120121 is an apocalyptic number.

It is an amenable number.

11122120121 is a deficient number, since it is larger than the sum of its proper divisors (1590028999).

11122120121 is a wasteful number, since it uses less digits than its factorization.

11122120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144343.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11122120121 its reverse (12102122111), we get a palindrome (23224242232).

The spelling of 11122120121 in words is "eleven billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".