212001031222200 has 864 divisors, whose sum is σ = 804043980339600. Its totient is φ = 49985596108800.

The previous prime is 212001031222147. The next prime is 212001031222241. The reversal of 212001031222200 is 2222130100212.

212001031222200 is a `hidden beast` number, since 2 + 1 + 200 + 10 + 31 + 222 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 38109116619 + ... + 38109122181.

Almost surely, 2^{212001031222200} is an apocalyptic number.

212001031222200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212001031222200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402021990169800).

212001031222200 is an abundant number, since it is smaller than the sum of its proper divisors (592042949117400).

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

212001031222200 is a wasteful number, since it uses less digits than its factorization.

212001031222200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10373 (or 10350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 212001031222200 its reverse (2222130100212), we get a palindrome (214223161322412).

The spelling of 212001031222200 in words is "two hundred twelve trillion, one billion, thirty-one million, two hundred twenty-two thousand, two hundred".