335161221 has 32 divisors (see below), whose sum is σ = 483259392. Its totient is φ = 206088960.

The previous prime is 335161217. The next prime is 335161223. The reversal of 335161221 is 122161533.

It is not a de Polignac number, because 335161221 - 2² = 335161217 is a prime.

It is a super-2 number, since 2×335161221² = 224666088124421682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 335161191 and 335161200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (335161223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 245581 + ... + 246941.

It is an arithmetic number, because the mean of its divisors is an integer number (15101856).

Almost surely, 2^335161221 is an apocalyptic number.

It is an amenable number.

335161221 is a deficient number, since it is larger than the sum of its proper divisors (148098171).

335161221 is a wasteful number, since it uses less digits than its factorization.

335161221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513.

The product of its digits is 1080, while the sum is 24.

The square root of 335161221 is about 18307.4089100561. The cubic root of 335161221 is about 694.6263512643.

The spelling of 335161221 in words is "three hundred thirty-five million, one hundred sixty-one thousand, two hundred twenty-one".