212120211112010 has 8 divisors (see below), whose sum is σ = 381816380001636. Its totient is φ = 84848084444800.

The previous prime is 212120211112003. The next prime is 212120211112049. The reversal of 212120211112010 is 10211112021212.

It can be written as a sum of positive squares in 2 ways, for example, as 175197440471089 + 36922770640921 = 13236217^2 + 6076411^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 212120211112010.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10606010555591 + ... + 10606010555610.

Almost surely, 2^{212120211112010} is an apocalyptic number.

212120211112010 is a deficient number, since it is larger than the sum of its proper divisors (169696168889626).

212120211112010 is a wasteful number, since it uses less digits than its factorization.

212120211112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212021111208.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212120211112010 its reverse (10211112021212), we get a palindrome (222331323133222).

The spelling of 212120211112010 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, ten".