331114221 has 12 divisors (see below), whose sum is σ = 491202972. Its totient is φ = 214776576.

The previous prime is 331114213. The next prime is 331114229. The reversal of 331114221 is 122411133.

331114221 is a `hidden beast` number, since 331 + 114 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (331114213) and next prime (331114229).

It can be written as a sum of positive squares in 2 ways, for example, as 133402500 + 197711721 = 11550^2 + 14061^2 .

It is not a de Polignac number, because 331114221 - 2³ = 331114213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331114194 and 331114203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331114229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496836 + ... + 497501.

It is an arithmetic number, because the mean of its divisors is an integer number (40933581).

Almost surely, 2^331114221 is an apocalyptic number.

It is an amenable number.

331114221 is a deficient number, since it is larger than the sum of its proper divisors (160088751).

331114221 is a wasteful number, since it uses less digits than its factorization.

331114221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994380 (or 994377 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 331114221 is about 18196.5442048758. The cubic root of 331114221 is about 691.8192006811.

Adding to 331114221 its reverse (122411133), we get a palindrome (453525354).

The spelling of 331114221 in words is "three hundred thirty-one million, one hundred fourteen thousand, two hundred twenty-one".