33212023400 has 96 divisors (see below), whose sum is σ = 78712819200. Its totient is φ = 13028908800.

The previous prime is 33212023379. The next prime is 33212023421. The reversal of 33212023400 is 432021233.

It is an interprime number because it is at equal distance from previous prime (33212023379) and next prime (33212023421).

It is a super-2 number, since 2×33212023400² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4376009 + ... + 4383591.

It is an arithmetic number, because the mean of its divisors is an integer number (819925200).

Almost surely, 2^33212023400 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33212023400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39356409600).

33212023400 is an abundant number, since it is smaller than the sum of its proper divisors (45500795800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33212023400 is a wasteful number, since it uses less digits than its factorization.

33212023400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8019 (or 8010 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 33212023400 its reverse (432021233), we get a palindrome (33644044633).

The spelling of 33212023400 in words is "thirty-three billion, two hundred twelve million, twenty-three thousand, four hundred".