201001212112111 has 16 divisors (see below), whose sum is σ = 204132512361600. Its totient is φ = 197892366148000.

The previous prime is 201001212112037. The next prime is 201001212112117. The reversal of 201001212112111 is 111211212100102.

It is a cyclic number.

It is not a de Polignac number, because 201001212112111 - 2¹¹ = 201001212110063 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 (201001212112117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559745220 + ... + 560104198.

It is an arithmetic number, because the mean of its divisors is an integer number (12758282022600).

Almost surely, 2^{201001212112111} is an apocalyptic number.

201001212112111 is a deficient number, since it is larger than the sum of its proper divisors (3131300249489).

201001212112111 is a wasteful number, since it uses less digits than its factorization.

201001212112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390230.

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

Adding to 201001212112111 its reverse (111211212100102), we get a palindrome (312212424212213).

The spelling of 201001212112111 in words is "two hundred one trillion, one billion, two hundred twelve million, one hundred twelve thousand, one hundred eleven".