33101012021 has 16 divisors (see below), whose sum is σ = 41273573760. Its totient is φ = 25790009280.

The previous prime is 33101011991. The next prime is 33101012023. The reversal of 33101012021 is 12021010133.

It is a de Polignac number, because none of the positive numbers 2^k-33101012021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 33101011987 and 33101012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33101012023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 836675 + ... + 875343.

It is an arithmetic number, because the mean of its divisors is an integer number (2579598360).

Almost surely, 2^33101012021 is an apocalyptic number.

It is an amenable number.

33101012021 is a deficient number, since it is larger than the sum of its proper divisors (8172561739).

33101012021 is a wasteful number, since it uses less digits than its factorization.

33101012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49804.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 33101012021 its reverse (12021010133), we get a palindrome (45122022154).

The spelling of 33101012021 in words is "thirty-three billion, one hundred one million, twelve thousand, twenty-one".