33102212002021 has 4 divisors (see below), whose sum is σ = 33996866380492. Its totient is φ = 32207557623552.

The previous prime is 33102212002007. The next prime is 33102212002031. The reversal of 33102212002021 is 12020021220133.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25770496896225 + 7331715105796 = 5076465^2 + 2707714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33102212002021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33102212002021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33102212002031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447327189180 + ... + 447327189253.

It is an arithmetic number, because the mean of its divisors is an integer number (8499216595123).

Almost surely, 2^{33102212002021} is an apocalyptic number.

It is an amenable number.

33102212002021 is a deficient number, since it is larger than the sum of its proper divisors (894654378471).

33102212002021 is an equidigital number, since it uses as much as digits as its factorization.

33102212002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894654378470.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 33102212002021 its reverse (12020021220133), we get a palindrome (45122233222154).

The spelling of 33102212002021 in words is "thirty-three trillion, one hundred two billion, two hundred twelve million, two thousand, twenty-one".