33220212121200 has 120 divisors (see below), whose sum is σ = 114601213868848. Its totient is φ = 8177282979840.

The previous prime is 33220212121193. The next prime is 33220212121211. The reversal of 33220212121200 is 212121202233.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×33220212121200² (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 23 ways as a sum of consecutive naturals, for example, 1064734789 + ... + 1064765988.

Almost surely, 2^{33220212121200} is an apocalyptic number.

33220212121200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33220212121200 is an abundant number, since it is smaller than the sum of its proper divisors (81381001747648).

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

33220212121200 is a wasteful number, since it uses less digits than its factorization.

33220212121200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2129500811 (or 2129500800 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 33220212121200 its reverse (212121202233), we get a palindrome (33432333323433).

The spelling of 33220212121200 in words is "thirty-three trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, two hundred".