212120311310202 has 32 divisors (see below), whose sum is σ = 424835054245440. Its totient is φ = 70607707672320.

The previous prime is 212120311310191. The next prime is 212120311310207. The reversal of 212120311310202 is 202013113021212.

It is not an unprimeable number, because it can be changed into a prime (212120311310207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92248738 + ... + 94520210.

It is an arithmetic number, because the mean of its divisors is an integer number (13276095445170).

Almost surely, 2^{212120311310202} is an apocalyptic number.

212120311310202 is an abundant number, since it is smaller than the sum of its proper divisors (212714742935238).

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

212120311310202 is a wasteful number, since it uses less digits than its factorization.

212120311310202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293278.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 212120311310202 its reverse (202013113021212), we get a palindrome (414133424331414).

The spelling of 212120311310202 in words is "two hundred twelve trillion, one hundred twenty billion, three hundred eleven million, three hundred ten thousand, two hundred two".