212133031422 has 48 divisors (see below), whose sum is σ = 475254235440. Its totient is φ = 63020944896.

The previous prime is 212133031379. The next prime is 212133031427. The reversal of 212133031422 is 224130331212.

It is a junction number, because it is equal to n+sod(n) for n = 212133031392 and 212133031401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212133031427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3577563 + ... + 3636374.

It is an arithmetic number, because the mean of its divisors is an integer number (9901129905).

Almost surely, 2^212133031422 is an apocalyptic number.

212133031422 is an abundant number, since it is smaller than the sum of its proper divisors (263121204018).

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

212133031422 is a wasteful number, since it uses less digits than its factorization.

212133031422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213997 (or 7213984 counting only the distinct ones).

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

Adding to 212133031422 its reverse (224130331212), we get a palindrome (436263362634).

The spelling of 212133031422 in words is "two hundred twelve billion, one hundred thirty-three million, thirty-one thousand, four hundred twenty-two".