112010211220121 has 4 divisors (see below), whose sum is σ = 112011026350692. Its totient is φ = 112009396089552.

The previous prime is 112010211220073. The next prime is 112010211220241. The reversal of 112010211220121 is 121022112010211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 99774906810121 + 12235304410000 = 9988739^2 + 3497900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112010211220121 is a prime.

It is a super-2 number, since 2×112010211220121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112010211220121.

It is not an unprimeable number, because it can be changed into a prime (112010211120121) 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, 407359130 + ... + 407634003.

It is an arithmetic number, because the mean of its divisors is an integer number (28002756587673).

Almost surely, 2^{112010211220121} is an apocalyptic number.

It is an amenable number.

112010211220121 is a deficient number, since it is larger than the sum of its proper divisors (815130571).

112010211220121 is an equidigital number, since it uses as much as digits as its factorization.

112010211220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815130570.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112010211220121 its reverse (121022112010211), we get a palindrome (233032323230332).

The spelling of 112010211220121 in words is "one hundred twelve trillion, ten billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-one".