212201312022 has 48 divisors (see below), whose sum is σ = 525477438720. Its totient is φ = 60625880496.

The previous prime is 212201311969. The next prime is 212201312027. The reversal of 212201312022 is 220213102212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212201311986 and 212201312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212201312027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3907129 + ... + 3961067.

It is an arithmetic number, because the mean of its divisors is an integer number (10947446640).

Almost surely, 2^212201312022 is an apocalyptic number.

212201312022 is an abundant number, since it is smaller than the sum of its proper divisors (313276126698).

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

212201312022 is a wasteful number, since it uses less digits than its factorization.

212201312022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85177 (or 85174 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212201312022 its reverse (220213102212), we get a palindrome (432414414234).

The spelling of 212201312022 in words is "two hundred twelve billion, two hundred one million, three hundred twelve thousand, twenty-two".