1130122021121 has 4 divisors (see below), whose sum is σ = 1145603144772. Its totient is φ = 1114640897472.

The previous prime is 1130122021111. The next prime is 1130122021153. The reversal of 1130122021121 is 1211202210311.

It is a happy number.

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 440449904896 + 689672116225 = 663664^2 + 830465^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130122021121 - 2²⁶ = 1130054912257 is a prime.

It is a super-2 number, since 2×1130122021121² (a number of 25 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 1130122021121.

It is not an unprimeable number, because it can be changed into a prime (1130122021111) 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, 7740561716 + ... + 7740561861.

It is an arithmetic number, because the mean of its divisors is an integer number (286400786193).

Almost surely, 2^{1130122021121} is an apocalyptic number.

It is an amenable number.

1130122021121 is a deficient number, since it is larger than the sum of its proper divisors (15481123651).

1130122021121 is an equidigital number, since it uses as much as digits as its factorization.

1130122021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15481123650.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1130122021121 its reverse (1211202210311), we get a palindrome (2341324231432).

The spelling of 1130122021121 in words is "one trillion, one hundred thirty billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-one".