212442221022 has 16 divisors (see below), whose sum is σ = 424893459600. Its totient is φ = 70812570752.

The previous prime is 212442220999. The next prime is 212442221077. The reversal of 212442221022 is 220122244212.

It is a junction number, because it is equal to n+sod(n) for n = 212442220983 and 212442221001.

It is a congruent number.

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, 47397 + ... + 653552.

It is an arithmetic number, because the mean of its divisors is an integer number (26555841225).

Almost surely, 2^212442221022 is an apocalyptic number.

212442221022 is an abundant number, since it is smaller than the sum of its proper divisors (212451238578).

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

212442221022 is a wasteful number, since it uses less digits than its factorization.

212442221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751467.

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 212442221022 its reverse (220122244212), we get a palindrome (432564465234).

The spelling of 212442221022 in words is "two hundred twelve billion, four hundred forty-two million, two hundred twenty-one thousand, twenty-two".