212021210022 has 32 divisors (see below), whose sum is σ = 428365670400. Its totient is φ = 69954864000.

The previous prime is 212021209991. The next prime is 212021210033. The reversal of 212021210022 is 220012120212.

212021210022 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212021209983 and 212021210010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300979 + ... + 717377.

It is an arithmetic number, because the mean of its divisors is an integer number (13386427200).

Almost surely, 2^212021210022 is an apocalyptic number.

212021210022 is an abundant number, since it is smaller than the sum of its proper divisors (216344460378).

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

212021210022 is a wasteful number, since it uses less digits than its factorization.

212021210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417268.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212021210022 its reverse (220012120212), we get a palindrome (432033330234).

The spelling of 212021210022 in words is "two hundred twelve billion, twenty-one million, two hundred ten thousand, twenty-two".