33212112013220 has 192 divisors, whose sum is σ = 84870567936000. Its totient is φ = 10671947320320.

The previous prime is 33212112013217. The next prime is 33212112013277. The reversal of 33212112013220 is 2231021121233.

It is a super-2 number, since 2×33212112013220² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32825456 + ... + 33822104.

It is an arithmetic number, because the mean of its divisors is an integer number (442034208000).

Almost surely, 2^{33212112013220} 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 33212112013220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42435283968000).

33212112013220 is an abundant number, since it is smaller than the sum of its proper divisors (51658455922780).

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

33212112013220 is a wasteful number, since it uses less digits than its factorization.

33212112013220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996898 (or 996896 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 33212112013220 its reverse (2231021121233), we get a palindrome (35443133134453).

The spelling of 33212112013220 in words is "thirty-three trillion, two hundred twelve billion, one hundred twelve million, thirteen thousand, two hundred twenty".