212120210222110 has 64 divisors (see below), whose sum is σ = 405223879956480. Its totient is φ = 79670029017600.

The previous prime is 212120210222051. The next prime is 212120210222113. The reversal of 212120210222110 is 11222012021212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120210222113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127638127 + ... + 129289333.

It is an arithmetic number, because the mean of its divisors is an integer number (6331623124320).

Almost surely, 2^{212120210222110} is an apocalyptic number.

212120210222110 is a deficient number, since it is larger than the sum of its proper divisors (193103669734370).

212120210222110 is a wasteful number, since it uses less digits than its factorization.

212120210222110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653001.

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

Adding to 212120210222110 its reverse (11222012021212), we get a palindrome (223342222243322).

The spelling of 212120210222110 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred ten million, two hundred twenty-two thousand, one hundred ten".