1130201220121 has 4 divisors (see below), whose sum is σ = 1196683644852. Its totient is φ = 1063718795392.

The previous prime is 1130201220089. The next prime is 1130201220131. The reversal of 1130201220121 is 1210221020311.

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 511046265625 + 619154954496 = 714875^2 + 786864^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130201220121 - 2⁵ = 1130201220089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130201220095 and 1130201220104.

It is not an unprimeable number, because it can be changed into a prime (1130201220131) 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, 33241212340 + ... + 33241212373.

It is an arithmetic number, because the mean of its divisors is an integer number (299170911213).

Almost surely, 2^{1130201220121} is an apocalyptic number.

It is an amenable number.

1130201220121 is a deficient number, since it is larger than the sum of its proper divisors (66482424731).

1130201220121 is an equidigital number, since it uses as much as digits as its factorization.

1130201220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66482424730.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1130201220121 its reverse (1210221020311), we get a palindrome (2340422240432).

The spelling of 1130201220121 in words is "one trillion, one hundred thirty billion, two hundred one million, two hundred twenty thousand, one hundred twenty-one".