33552612021 has 4 divisors (see below), whose sum is σ = 44736816032. Its totient is φ = 22368408012.

The previous prime is 33552612019. The next prime is 33552612053. The reversal of 33552612021 is 12021625533.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 33552612021 - 2¹ = 33552612019 is a prime.

It is a super-2 number, since 2×33552612021² (a number of 22 digits) contains 22 as substring.

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 33552612021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33552612011) 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, 5592102001 + ... + 5592102006.

It is an arithmetic number, because the mean of its divisors is an integer number (11184204008).

Almost surely, 2^33552612021 is an apocalyptic number.

It is an amenable number.

33552612021 is a deficient number, since it is larger than the sum of its proper divisors (11184204011).

33552612021 is a wasteful number, since it uses less digits than its factorization.

33552612021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11184204010.

The product of its (nonzero) digits is 10800, while the sum is 30.

The spelling of 33552612021 in words is "thirty-three billion, five hundred fifty-two million, six hundred twelve thousand, twenty-one".