3370506779221 has 2 divisors, whose sum is σ = 3370506779222. Its totient is φ = 3370506779220.

The previous prime is 3370506779219. The next prime is 3370506779243. The reversal of 3370506779221 is 1229776050733.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2177793790225 + 1192712988996 = 1475735^2 + 1092114^2 .

It is a cyclic number.

It is not a de Polignac number, because 3370506779221 - 2¹ = 3370506779219 is a prime.

It is a super-2 number, since 2×3370506779221² (a number of 26 digits) contains 22 as substring.

Together with 3370506779219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3370506779281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1685253389610 + 1685253389611.

It is an arithmetic number, because the mean of its divisors is an integer number (1685253389611).

Almost surely, 2^{3370506779221} is an apocalyptic number.

It is an amenable number.

3370506779221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3370506779221 is an equidigital number, since it uses as much as digits as its factorization.

3370506779221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3333960, while the sum is 52.

The spelling of 3370506779221 in words is "three trillion, three hundred seventy billion, five hundred six million, seven hundred seventy-nine thousand, two hundred twenty-one".