33213220401 has 16 divisors (see below), whose sum is σ = 45138985920. Its totient is φ = 21716536320.

The previous prime is 33213220321. The next prime is 33213220421. The reversal of 33213220401 is 10402231233.

It is not a de Polignac number, because 33213220401 - 2⁷ = 33213220273 is a prime.

It is a super-2 number, since 2×33213220401² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33213220421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140040 + ... + 293321.

It is an arithmetic number, because the mean of its divisors is an integer number (2821186620).

Almost surely, 2^33213220401 is an apocalyptic number.

It is an amenable number.

33213220401 is a deficient number, since it is larger than the sum of its proper divisors (11925765519).

33213220401 is a wasteful number, since it uses less digits than its factorization.

33213220401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433856.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33213220401 its reverse (10402231233), we get a palindrome (43615451634).

The spelling of 33213220401 in words is "thirty-three billion, two hundred thirteen million, two hundred twenty thousand, four hundred one".