210000201221111 has 8 divisors (see below), whose sum is σ = 240001592486400. Its totient is φ = 179999150585688.

The previous prime is 210000201221081. The next prime is 210000201221197. The reversal of 210000201221111 is 111122102000012.

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

It is not a de Polignac number, because 210000201221111 - 2³⁴ = 209983021351927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210000201221711) 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, 83835011 + ... + 86303588.

It is an arithmetic number, because the mean of its divisors is an integer number (30000199060800).

Almost surely, 2^{210000201221111} is an apocalyptic number.

210000201221111 is a deficient number, since it is larger than the sum of its proper divisors (30001391265289).

210000201221111 is a wasteful number, since it uses less digits than its factorization.

210000201221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170314933.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210000201221111 its reverse (111122102000012), we get a palindrome (321122303221123).

The spelling of 210000201221111 in words is "two hundred ten trillion, two hundred one million, two hundred twenty-one thousand, one hundred eleven".