33213212000020 has 24 divisors (see below), whose sum is σ = 75112956369864. Its totient is φ = 12263339815296.

The previous prime is 33213211999999. The next prime is 33213212000039. The reversal of 33213212000020 is 2000021231233.

It can be written as a sum of positive squares in 4 ways, for example, as 793603032336 + 32419608967684 = 890844^2 + 5693822^2 .

It is a super-2 number, since 2×33213212000020² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63871561279 + ... + 63871561798.

It is an arithmetic number, because the mean of its divisors is an integer number (3129706515411).

Almost surely, 2^{33213212000020} is an apocalyptic number.

It is an amenable number.

33213212000020 is an abundant number, since it is smaller than the sum of its proper divisors (41899744369844).

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

33213212000020 is a wasteful number, since it uses less digits than its factorization.

33213212000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127743123099 (or 127743123097 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33213212000020 its reverse (2000021231233), we get a palindrome (35213233231253).

The spelling of 33213212000020 in words is "thirty-three trillion, two hundred thirteen billion, two hundred twelve million, twenty", and thus it is an aban number.