212203312011 has 24 divisors (see below), whose sum is σ = 336676504320. Its totient is φ = 128196048816.

The previous prime is 212203312003. The next prime is 212203312021. The reversal of 212203312011 is 110213302212.

It is not a de Polignac number, because 212203312011 - 2³ = 212203312003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212203312001) 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, 26973351 + ... + 26981216.

It is an arithmetic number, because the mean of its divisors is an integer number (14028187680).

Almost surely, 2^212203312011 is an apocalyptic number.

212203312011 is a deficient number, since it is larger than the sum of its proper divisors (124473192309).

212203312011 is a wasteful number, since it uses less digits than its factorization.

212203312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53954615 (or 53954612 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212203312011 its reverse (110213302212), we get a palindrome (322416614223).

The spelling of 212203312011 in words is "two hundred twelve billion, two hundred three million, three hundred twelve thousand, eleven".