212120122122010 has 16 divisors (see below), whose sum is σ = 401911810336800. Its totient is φ = 80382362067216.

The previous prime is 212120122121993. The next prime is 212120122122017. The reversal of 212120122122010 is 10221221021212.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (212120122122017) 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, 558210847500 + ... + 558210847879.

It is an arithmetic number, because the mean of its divisors is an integer number (25119488146050).

Almost surely, 2^{212120122122010} is an apocalyptic number.

212120122122010 is a deficient number, since it is larger than the sum of its proper divisors (189791688214790).

212120122122010 is a wasteful number, since it uses less digits than its factorization.

212120122122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116421695405.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212120122122010 its reverse (10221221021212), we get a palindrome (222341343143222).

The spelling of 212120122122010 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred twenty-two million, one hundred twenty-two thousand, ten".