11112002120121 has 8 divisors (see below), whose sum is σ = 16932574659264. Its totient is φ = 6349715497200.

The previous prime is 11112002120099. The next prime is 11112002120143. The reversal of 11112002120121 is 12102120021111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11112002120099) and next prime (11112002120143).

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

It is not a de Polignac number, because 11112002120121 - 2²² = 11111997925817 is a prime.

It is a super-2 number, since 2×11112002120121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11112002120121.

It is not an unprimeable number, because it can be changed into a prime (11112002120161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264571479030 + ... + 264571479071.

It is an arithmetic number, because the mean of its divisors is an integer number (2116571832408).

Almost surely, 2^{11112002120121} is an apocalyptic number.

It is an amenable number.

11112002120121 is a deficient number, since it is larger than the sum of its proper divisors (5820572539143).

11112002120121 is an equidigital number, since it uses as much as digits as its factorization.

11112002120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529142958111.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11112002120121 its reverse (12102120021111), we get a palindrome (23214122141232).

The spelling of 11112002120121 in words is "eleven trillion, one hundred twelve billion, two million, one hundred twenty thousand, one hundred twenty-one".