212133100042 has 16 divisors (see below), whose sum is σ = 322998477120. Its totient is φ = 104476004512.

The previous prime is 212133099889. The next prime is 212133100051. The reversal of 212133100042 is 240001331212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212133099992 and 212133100019.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218888 + ... + 2312515.

It is an arithmetic number, because the mean of its divisors is an integer number (20187404820).

Almost surely, 2^212133100042 is an apocalyptic number.

212133100042 is a deficient number, since it is larger than the sum of its proper divisors (110865377078).

212133100042 is a wasteful number, since it uses less digits than its factorization.

212133100042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531757.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212133100042 its reverse (240001331212), we get a palindrome (452134431254).

The spelling of 212133100042 in words is "two hundred twelve billion, one hundred thirty-three million, one hundred thousand, forty-two".