212104220402 has 16 divisors (see below), whose sum is σ = 318667675392. Its totient is φ = 105881737920.

The previous prime is 212104220401. The next prime is 212104220407. The reversal of 212104220402 is 204022401212.

212104220402 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212104220401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6428327 + ... + 6461237.

It is an arithmetic number, because the mean of its divisors is an integer number (19916729712).

Almost surely, 2^212104220402 is an apocalyptic number.

212104220402 is a deficient number, since it is larger than the sum of its proper divisors (106563454990).

212104220402 is a wasteful number, since it uses less digits than its factorization.

212104220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37993.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 212104220402 its reverse (204022401212), we get a palindrome (416126621614).

The spelling of 212104220402 in words is "two hundred twelve billion, one hundred four million, two hundred twenty thousand, four hundred two".