212002202111012 has 24 divisors (see below), whose sum is σ = 392830058620440. Its totient is φ = 99765120245760.

The previous prime is 212002202111003. The next prime is 212002202111017. The reversal of 212002202111012 is 210111202200212.

It can be written as a sum of positive squares in 4 ways, for example, as 69829822067776 + 142172380043236 = 8356424^2 + 11923606^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (212002202111017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363064 + ... + 20636432.

It is an arithmetic number, because the mean of its divisors is an integer number (16367919109185).

Almost surely, 2^{212002202111012} is an apocalyptic number.

It is an amenable number.

212002202111012 is a deficient number, since it is larger than the sum of its proper divisors (180827856509428).

212002202111012 is a wasteful number, since it uses less digits than its factorization.

212002202111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19435151 (or 19435149 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212002202111012 its reverse (210111202200212), we get a palindrome (422113404311224).

The spelling of 212002202111012 in words is "two hundred twelve trillion, two billion, two hundred two million, one hundred eleven thousand, twelve".