211213122200 has 48 divisors (see below), whose sum is σ = 499120874160. Its totient is φ = 83100240000.

The previous prime is 211213122101. The next prime is 211213122203. The reversal of 211213122200 is 2221312112.

It is a super-2 number, since 2×211213122200² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211213122203) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 8644076 + ... + 8668475.

It is an arithmetic number, because the mean of its divisors is an integer number (10398351545).

Almost surely, 2^211213122200 is an apocalyptic number.

211213122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211213122200 is an abundant number, since it is smaller than the sum of its proper divisors (287907751960).

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

211213122200 is a wasteful number, since it uses less digits than its factorization.

211213122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17312628 (or 17312619 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 211213122200 its reverse (2221312112), we get a palindrome (213434434312).

The spelling of 211213122200 in words is "two hundred eleven billion, two hundred thirteen million, one hundred twenty-two thousand, two hundred".