212212232043400 has 48 divisors (see below), whose sum is σ = 493604382632400. Its totient is φ = 84848601526080.

The previous prime is 212212232043359. The next prime is 212212232043433. The reversal of 212212232043400 is 4340232212212.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 226351602 + ... + 227287201.

It is an arithmetic number, because the mean of its divisors is an integer number (10283424638175).

Almost surely, 2^{212212232043400} is an apocalyptic number.

212212232043400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212212232043400 is an abundant number, since it is smaller than the sum of its proper divisors (281392150589000).

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

212212232043400 is a wasteful number, since it uses less digits than its factorization.

212212232043400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453641158 (or 453641149 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 212212232043400 its reverse (4340232212212), we get a palindrome (216552464255612).

The spelling of 212212232043400 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred thirty-two million, forty-three thousand, four hundred".