33112201212989 has 2 divisors, whose sum is σ = 33112201212990. Its totient is φ = 33112201212988.

The previous prime is 33112201212949. The next prime is 33112201213051. The reversal of 33112201212989 is 98921210221133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32741764649764 + 370436563225 = 5722042^2 + 608635^2 .

It is a cyclic number.

It is not a de Polignac number, because 33112201212989 - 2²⁸ = 33111932777533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33112201212919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16556100606494 + 16556100606495.

It is an arithmetic number, because the mean of its divisors is an integer number (16556100606495).

Almost surely, 2^{33112201212989} is an apocalyptic number.

It is an amenable number.

33112201212989 is a deficient number, since it is larger than the sum of its proper divisors (1).

33112201212989 is an equidigital number, since it uses as much as digits as its factorization.

33112201212989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 33112201212989 in words is "thirty-three trillion, one hundred twelve billion, two hundred one million, two hundred twelve thousand, nine hundred eighty-nine".