212133334443 has 16 divisors (see below), whose sum is σ = 292637318400. Its totient is φ = 136527107360.

The previous prime is 212133334421. The next prime is 212133334471. The reversal of 212133334443 is 344433331212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212133334443 - 2⁵ = 212133334411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212133334243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 496348 + ... + 818918.

It is an arithmetic number, because the mean of its divisors is an integer number (18289832400).

Almost surely, 2^212133334443 is an apocalyptic number.

212133334443 is a deficient number, since it is larger than the sum of its proper divisors (80503983957).

212133334443 is a wasteful number, since it uses less digits than its factorization.

212133334443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330162.

The product of its digits is 62208, while the sum is 33.

Adding to 212133334443 its reverse (344433331212), we get a palindrome (556566665655).

The spelling of 212133334443 in words is "two hundred twelve billion, one hundred thirty-three million, three hundred thirty-four thousand, four hundred forty-three".