33121100232011 has 12 divisors (see below), whose sum is σ = 36455914347216. Its totient is φ = 30068674133520.

The previous prime is 33121100231929. The next prime is 33121100232023. The reversal of 33121100232011 is 11023200112133.

It is a happy number.

It is not a de Polignac number, because 33121100232011 - 2¹⁰ = 33121100230987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33121100232511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188170700 + ... + 188346633.

It is an arithmetic number, because the mean of its divisors is an integer number (3037992862268).

Almost surely, 2^{33121100232011} is an apocalyptic number.

33121100232011 is a deficient number, since it is larger than the sum of its proper divisors (3334814115205).

33121100232011 is a wasteful number, since it uses less digits than its factorization.

33121100232011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376518082 (or 376518071 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 33121100232011 its reverse (11023200112133), we get a palindrome (44144300344144).

The spelling of 33121100232011 in words is "thirty-three trillion, one hundred twenty-one billion, one hundred million, two hundred thirty-two thousand, eleven".