133212213420 has 96 divisors (see below), whose sum is σ = 438203001600. Its totient is φ = 29809724160.

The previous prime is 133212213419. The next prime is 133212213517. The reversal of 133212213420 is 24312212331.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7754370 + ... + 7771529.

It is an arithmetic number, because the mean of its divisors is an integer number (4564614600).

Almost surely, 2^133212213420 is an apocalyptic number.

133212213420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133212213420 is an abundant number, since it is smaller than the sum of its proper divisors (304990788180).

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

133212213420 is a wasteful number, since it uses less digits than its factorization.

133212213420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15525935 (or 15525933 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 133212213420 its reverse (24312212331), we get a palindrome (157524425751).

The spelling of 133212213420 in words is "one hundred thirty-three billion, two hundred twelve million, two hundred thirteen thousand, four hundred twenty".