1131014221221 has 8 divisors (see below), whose sum is σ = 1508922514720. Its totient is φ = 753557704272.

The previous prime is 1131014221193. The next prime is 1131014221229. The reversal of 1131014221221 is 1221224101311.

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

It is not a de Polignac number, because 1131014221221 - 2⁵ = 1131014221189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131014221229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112938295 + ... + 112948308.

It is an arithmetic number, because the mean of its divisors is an integer number (188615314340).

Almost surely, 2^{1131014221221} is an apocalyptic number.

It is an amenable number.

1131014221221 is a deficient number, since it is larger than the sum of its proper divisors (377908293499).

1131014221221 is a wasteful number, since it uses less digits than its factorization.

1131014221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225888275.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1131014221221 its reverse (1221224101311), we get a palindrome (2352238322532).

The spelling of 1131014221221 in words is "one trillion, one hundred thirty-one billion, fourteen million, two hundred twenty-one thousand, two hundred twenty-one".