6112871221 has 2 divisors, whose sum is σ = 6112871222. Its totient is φ = 6112871220.

The previous prime is 6112871087. The next prime is 6112871231. The reversal of 6112871221 is 1221782116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4371060996 + 1741810225 = 66114^2 + 41735^2 .

It is a cyclic number.

It is not a de Polignac number, because 6112871221 - 2¹⁷ = 6112740149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6112871231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056435610 + 3056435611.

It is an arithmetic number, because the mean of its divisors is an integer number (3056435611).

Almost surely, 2^6112871221 is an apocalyptic number.

It is an amenable number.

6112871221 is a deficient number, since it is larger than the sum of its proper divisors (1).

6112871221 is an equidigital number, since it uses as much as digits as its factorization.

6112871221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 31.

The square root of 6112871221 is about 78184.8528872441. The cubic root of 6112871221 is about 1828.4443587303. Note that the first 3 decimals are identical.

The spelling of 6112871221 in words is "six billion, one hundred twelve million, eight hundred seventy-one thousand, two hundred twenty-one".