212200210222100 has 36 divisors (see below), whose sum is σ = 460557083348124. Its totient is φ = 84864853274880.

The previous prime is 212200210222061. The next prime is 212200210222159. The reversal of 212200210222100 is 1222012002212.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 1338329687044 + 210861880535056 = 1156862^2 + 14521084^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189825089 + ... + 190939688.

Almost surely, 2^{212200210222100} is an apocalyptic number.

212200210222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212200210222100 is an abundant number, since it is smaller than the sum of its proper divisors (248356873126024).

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

212200210222100 is a wasteful number, since it uses less digits than its factorization.

212200210222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380770364 (or 380770357 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212200210222100 its reverse (1222012002212), we get a palindrome (213422222224312).

The spelling of 212200210222100 in words is "two hundred twelve trillion, two hundred billion, two hundred ten million, two hundred twenty-two thousand, one hundred".