212211101212 has 48 divisors (see below), whose sum is σ = 409270740480. Its totient is φ = 95474376000.

The previous prime is 212211101203. The next prime is 212211101261. The reversal of 212211101212 is 212101112212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20077153 + ... + 20087719.

It is an arithmetic number, because the mean of its divisors is an integer number (8526473760).

Almost surely, 2^212211101212 is an apocalyptic number.

212211101212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212211101212 is a deficient number, since it is larger than the sum of its proper divisors (197059639268).

212211101212 is a wasteful number, since it uses less digits than its factorization.

212211101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15202 (or 15200 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212211101212 its reverse (212101112212), we get a palindrome (424312213424).

The spelling of 212211101212 in words is "two hundred twelve billion, two hundred eleven million, one hundred one thousand, two hundred twelve".