2693229221 has 2 divisors, whose sum is σ = 2693229222. Its totient is φ = 2693229220.

The previous prime is 2693229169. The next prime is 2693229241. The reversal of 2693229221 is 1229223962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2477550625 + 215678596 = 49775^2 + 14686^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2693229221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2693229241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1346614610 + 1346614611.

It is an arithmetic number, because the mean of its divisors is an integer number (1346614611).

Almost surely, 2^2693229221 is an apocalyptic number.

It is an amenable number.

2693229221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2693229221 is an equidigital number, since it uses as much as digits as its factorization.

2693229221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 2693229221 is about 51896.3314792096. The cubic root of 2693229221 is about 1391.3117064249.

The spelling of 2693229221 in words is "two billion, six hundred ninety-three million, two hundred twenty-nine thousand, two hundred twenty-one".