33300022021 has 4 divisors (see below), whose sum is σ = 38057168032. Its totient is φ = 28542876012.

The previous prime is 33300021983. The next prime is 33300022037. The reversal of 33300022021 is 12022000333.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12022000333 = 7 ⋅1717428619.

It is not a de Polignac number, because 33300022021 - 2¹⁵ = 33299989253 is a prime.

It is a super-2 number, since 2×33300022021² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33300021986 and 33300022004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33300422021) 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, 2378572995 + ... + 2378573008.

It is an arithmetic number, because the mean of its divisors is an integer number (9514292008).

Almost surely, 2^33300022021 is an apocalyptic number.

It is an amenable number.

33300022021 is a deficient number, since it is larger than the sum of its proper divisors (4757146011).

33300022021 is an equidigital number, since it uses as much as digits as its factorization.

33300022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757146010.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 33300022021 its reverse (12022000333), we get a palindrome (45322022354).

The spelling of 33300022021 in words is "thirty-three billion, three hundred million, twenty-two thousand, twenty-one".