2722217633381 has 2 divisors, whose sum is σ = 2722217633382. Its totient is φ = 2722217633380.

The previous prime is 2722217633363. The next prime is 2722217633411. The reversal of 2722217633381 is 1833367122272.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2337737029156 + 384480604225 = 1528966^2 + 620065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2722217633381 is a prime.

It is a super-2 number, since 2×2722217633381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2722217633341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1361108816690 + 1361108816691.

It is an arithmetic number, because the mean of its divisors is an integer number (1361108816691).

Almost surely, 2^{2722217633381} is an apocalyptic number.

It is an amenable number.

2722217633381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2722217633381 is an equidigital number, since it uses as much as digits as its factorization.

2722217633381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The spelling of 2722217633381 in words is "two trillion, seven hundred twenty-two billion, two hundred seventeen million, six hundred thirty-three thousand, three hundred eighty-one".