133312211220 has 48 divisors (see below), whose sum is σ = 380317109760. Its totient is φ = 34879168896.

The previous prime is 133312211143. The next prime is 133312211237. The reversal of 133312211220 is 22112213331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20957860 + ... + 20964219.

It is an arithmetic number, because the mean of its divisors is an integer number (7923273120).

Almost surely, 2^133312211220 is an apocalyptic number.

133312211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133312211220 is an abundant number, since it is smaller than the sum of its proper divisors (247004898540).

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

133312211220 is a wasteful number, since it uses less digits than its factorization.

133312211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41922144 (or 41922142 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 133312211220 its reverse (22112213331), we get a palindrome (155424424551).

The spelling of 133312211220 in words is "one hundred thirty-three billion, three hundred twelve million, two hundred eleven thousand, two hundred twenty".