3143011221 has 32 divisors (see below), whose sum is σ = 5634535680. Its totient is φ = 1690357248.

The previous prime is 3143011211. The next prime is 3143011231. The reversal of 3143011221 is 1221103413.

3143011221 is a `hidden beast` number, since 3 + 1 + 430 + 11 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (3143011211) and next prime (3143011231).

It is not a de Polignac number, because 3143011221 - 2⁵ = 3143011189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3143011194 and 3143011203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143011211) 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, 485896 + ... + 492321.

It is an arithmetic number, because the mean of its divisors is an integer number (176079240).

Almost surely, 2^3143011221 is an apocalyptic number.

It is an amenable number.

3143011221 is a deficient number, since it is larger than the sum of its proper divisors (2491524459).

3143011221 is a wasteful number, since it uses less digits than its factorization.

3143011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978250 (or 978244 counting only the distinct ones).

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

The square root of 3143011221 is about 56062.5652374202. The cubic root of 3143011221 is about 1464.8122969648.

Adding to 3143011221 its reverse (1221103413), we get a palindrome (4364114634).

The spelling of 3143011221 in words is "three billion, one hundred forty-three million, eleven thousand, two hundred twenty-one".