212323020212 has 12 divisors (see below), whose sum is σ = 371572030116. Its totient is φ = 106159583040.

The previous prime is 212323020211. The next prime is 212323020289. The reversal of 212323020212 is 212020323212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 37510392976 + 174812627236 = 193676^2 + 418106^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212323020211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217793 + ... + 687080.

It is an arithmetic number, because the mean of its divisors is an integer number (30964335843).

Almost surely, 2^212323020212 is an apocalyptic number.

It is an amenable number.

212323020212 is a deficient number, since it is larger than the sum of its proper divisors (159249009904).

212323020212 is a wasteful number, since it uses less digits than its factorization.

212323020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963538 (or 963536 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212323020212 its reverse (212020323212), we get a palindrome (424343343424).

The spelling of 212323020212 in words is "two hundred twelve billion, three hundred twenty-three million, twenty thousand, two hundred twelve".