210000121221112 has 16 divisors (see below), whose sum is σ = 394197162861600. Its totient is φ = 104880877791360.

The previous prime is 210000121221097. The next prime is 210000121221173. The reversal of 210000121221112 is 211122121000012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14897844912 + ... + 14897859007.

It is an arithmetic number, because the mean of its divisors is an integer number (24637322678850).

Almost surely, 2^{210000121221112} is an apocalyptic number.

It is an amenable number.

210000121221112 is a deficient number, since it is larger than the sum of its proper divisors (184197041640488).

210000121221112 is a wasteful number, since it uses less digits than its factorization.

210000121221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29795704806 (or 29795704802 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210000121221112 its reverse (211122121000012), we get a palindrome (421122242221124).

The spelling of 210000121221112 in words is "two hundred ten trillion, one hundred twenty-one million, two hundred twenty-one thousand, one hundred twelve".