33101121997 has 2 divisors, whose sum is σ = 33101121998. Its totient is φ = 33101121996.

The previous prime is 33101121967. The next prime is 33101122009. The reversal of 33101121997 is 79912110133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31738847716 + 1362274281 = 178154^2 + 36909^2 .

It is a cyclic number.

It is not a de Polignac number, because 33101121997 - 2⁷ = 33101121869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33101121967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16550560998 + 16550560999.

It is an arithmetic number, because the mean of its divisors is an integer number (16550560999).

Almost surely, 2^33101121997 is an apocalyptic number.

It is an amenable number.

33101121997 is a deficient number, since it is larger than the sum of its proper divisors (1).

33101121997 is an equidigital number, since it uses as much as digits as its factorization.

33101121997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The spelling of 33101121997 in words is "thirty-three billion, one hundred one million, one hundred twenty-one thousand, nine hundred ninety-seven".