212201111022 has 32 divisors (see below), whose sum is σ = 427588304640. Its totient is φ = 70203006720.

The previous prime is 212201110939. The next prime is 212201111077. The reversal of 212201111022 is 220111102212.

It is a junction number, because it is equal to n+sod(n) for n = 212201110992 and 212201111010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2765223 + ... + 2840925.

It is an arithmetic number, because the mean of its divisors is an integer number (13362134520).

Almost surely, 2^212201111022 is an apocalyptic number.

212201111022 is an abundant number, since it is smaller than the sum of its proper divisors (215387193618).

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

212201111022 is a wasteful number, since it uses less digits than its factorization.

212201111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79208.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212201111022 its reverse (220111102212), we get a palindrome (432312213234).

The spelling of 212201111022 in words is "two hundred twelve billion, two hundred one million, one hundred eleven thousand, twenty-two".