2235205212991 has 2 divisors, whose sum is σ = 2235205212992. Its totient is φ = 2235205212990.

The previous prime is 2235205212959. The next prime is 2235205213037. The reversal of 2235205212991 is 1992125025322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2235205212991 - 2⁵ = 2235205212959 is a prime.

It is a super-2 number, since 2×2235205212991² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2235205212931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1117602606495 + 1117602606496.

It is an arithmetic number, because the mean of its divisors is an integer number (1117602606496).

Almost surely, 2^{2235205212991} is an apocalyptic number.

2235205212991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2235205212991 is an equidigital number, since it uses as much as digits as its factorization.

2235205212991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 2235205212991 in words is "two trillion, two hundred thirty-five billion, two hundred five million, two hundred twelve thousand, nine hundred ninety-one".