212212201210002 has 160 divisors (see below), whose sum is σ = 561135894359040. Its totient is φ = 58659177922560.

The previous prime is 212212201209989. The next prime is 212212201210007. The reversal of 212212201210002 is 200012102212212.

It is a happy number.

212212201210002 is a `hidden beast` number, since 212 + 21 + 220 + 1 + 210 + 0 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (212212201210007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 120654274 + ... + 122400482.

It is an arithmetic number, because the mean of its divisors is an integer number (3507099339744).

Almost surely, 2^{212212201210002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212212201210002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280567947179520).

212212201210002 is an abundant number, since it is smaller than the sum of its proper divisors (348923693149038).

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

212212201210002 is a wasteful number, since it uses less digits than its factorization.

212212201210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749718 (or 1749709 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 212212201210002 its reverse (200012102212212), we get a palindrome (412224303422214).

The spelling of 212212201210002 in words is "two hundred twelve trillion, two hundred twelve billion, two hundred one million, two hundred ten thousand, two".