212012221112202 has 256 divisors, whose sum is σ = 504296865792000. Its totient is φ = 59379588918720.

The previous prime is 212012221112189. The next prime is 212012221112207. The reversal of 212012221112202 is 202211122210212.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (212012221112207) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 81826405927 + ... + 81826408517.

It is an arithmetic number, because the mean of its divisors is an integer number (1969909632000).

Almost surely, 2^{212012221112202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212012221112202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252148432896000).

212012221112202 is an abundant number, since it is smaller than the sum of its proper divisors (292284644679798).

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

212012221112202 is a wasteful number, since it uses less digits than its factorization.

212012221112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4326 (or 4312 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 212012221112202 its reverse (202211122210212), we get a palindrome (414223343322414).

The spelling of 212012221112202 in words is "two hundred twelve trillion, twelve billion, two hundred twenty-one million, one hundred twelve thousand, two hundred two".