212133000042 has 48 divisors (see below), whose sum is σ = 469826023680. Its totient is φ = 69143800416.

The previous prime is 212133000029. The next prime is 212133000067. The reversal of 212133000042 is 240000331212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212132999979 and 212133000024.

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, 825163 + ... + 1051265.

It is an arithmetic number, because the mean of its divisors is an integer number (9788042160).

Almost surely, 2^212133000042 is an apocalyptic number.

212133000042 is an abundant number, since it is smaller than the sum of its proper divisors (257693023638).

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

212133000042 is a wasteful number, since it uses less digits than its factorization.

212133000042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227267 (or 227264 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212133000042 its reverse (240000331212), we get a palindrome (452133331254).

The spelling of 212133000042 in words is "two hundred twelve billion, one hundred thirty-three million, forty-two", and thus it is an aban number.