2101133221237 has 2 divisors, whose sum is σ = 2101133221238. Its totient is φ = 2101133221236.

The previous prime is 2101133221219. The next prime is 2101133221241. The reversal of 2101133221237 is 7321223311012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2099676348676 + 1456872561 = 1449026^2 + 38169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101133221237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101133221037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050566610618 + 1050566610619.

It is an arithmetic number, because the mean of its divisors is an integer number (1050566610619).

Almost surely, 2^{2101133221237} is an apocalyptic number.

It is an amenable number.

2101133221237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101133221237 is an equidigital number, since it uses as much as digits as its factorization.

2101133221237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 2101133221237 its reverse (7321223311012), we get a palindrome (9422356532249).

The spelling of 2101133221237 in words is "two trillion, one hundred one billion, one hundred thirty-three million, two hundred twenty-one thousand, two hundred thirty-seven".