212120210202010 has 128 divisors (see below), whose sum is σ = 439471360677888. Its totient is φ = 72962033760000.

The previous prime is 212120210201981. The next prime is 212120210202013. The reversal of 212120210202010 is 10202012021212.

It is a happy number.

212120210202010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212120210202010² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212120210202013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 210821425 + ... + 211825195.

It is an arithmetic number, because the mean of its divisors is an integer number (3433370005296).

Almost surely, 2^{212120210202010} is an apocalyptic number.

212120210202010 is an abundant number, since it is smaller than the sum of its proper divisors (227351150475878).

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

212120210202010 is a wasteful number, since it uses less digits than its factorization.

212120210202010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004740.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212120210202010 its reverse (10202012021212), we get a palindrome (222322222223222).

The spelling of 212120210202010 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred ten million, two hundred two thousand, ten".