212021223032 has 16 divisors (see below), whose sum is σ = 399203143200. Its totient is φ = 105567051520.

The previous prime is 212021223019. The next prime is 212021223047. The reversal of 212021223032 is 230322120212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212021222995 and 212021223013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55442969 + ... + 55446792.

It is an arithmetic number, because the mean of its divisors is an integer number (24950196450).

Almost surely, 2^212021223032 is an apocalyptic number.

It is an amenable number.

212021223032 is a deficient number, since it is larger than the sum of its proper divisors (187181920168).

212021223032 is a wasteful number, since it uses less digits than its factorization.

212021223032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110890006 (or 110890002 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212021223032 its reverse (230322120212), we get a palindrome (442343343244).

The spelling of 212021223032 in words is "two hundred twelve billion, twenty-one million, two hundred twenty-three thousand, thirty-two".