210012021212111 has 4 divisors (see below), whose sum is σ = 210013486988424. Its totient is φ = 210010555435800.

The previous prime is 210012021212101. The next prime is 210012021212141. The reversal of 210012021212111 is 111212120210012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210012021212111 - 2³⁴ = 209994841342927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210012021212111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012021212101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732673220 + ... + 732959801.

It is an arithmetic number, because the mean of its divisors is an integer number (52503371747106).

Almost surely, 2^{210012021212111} is an apocalyptic number.

210012021212111 is a deficient number, since it is larger than the sum of its proper divisors (1465776313).

210012021212111 is a wasteful number, since it uses less digits than its factorization.

210012021212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465776312.

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

Adding to 210012021212111 its reverse (111212120210012), we get a palindrome (321224141422123).

The spelling of 210012021212111 in words is "two hundred ten trillion, twelve billion, twenty-one million, two hundred twelve thousand, one hundred eleven".