212003312022 has 12 divisors (see below), whose sum is σ = 459340509420. Its totient is φ = 70667770668.

The previous prime is 212003311999. The next prime is 212003312029. The reversal of 212003312022 is 220213300212.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11777961779 = 212003312022 / (2 + 1 + 2 + 0 + 0 + 3 + 3 + 1 + 2 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 212003311986 and 212003312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212003312029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5888980872 + ... + 5888980907.

It is an arithmetic number, because the mean of its divisors is an integer number (38278375785).

Almost surely, 2^212003312022 is an apocalyptic number.

212003312022 is an abundant number, since it is smaller than the sum of its proper divisors (247337197398).

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

212003312022 is a wasteful number, since it uses less digits than its factorization.

212003312022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11777961787 (or 11777961784 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212003312022 its reverse (220213300212), we get a palindrome (432216612234).

The spelling of 212003312022 in words is "two hundred twelve billion, three million, three hundred twelve thousand, twenty-two".