201111020212111 has 8 divisors (see below), whose sum is σ = 205560063256320. Its totient is φ = 196709560516248.

The previous prime is 201111020212087. The next prime is 201111020212129. The reversal of 201111020212111 is 111212020111102.

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

It is a cyclic number.

It is not a de Polignac number, because 201111020212111 - 2⁵ = 201111020212079 is a prime.

It is a super-2 number, since 2×201111020212111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201111020212171) 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, 11895828541 + ... + 11895845446.

It is an arithmetic number, because the mean of its divisors is an integer number (25695007907040).

Almost surely, 2^{201111020212111} is an apocalyptic number.

201111020212111 is a deficient number, since it is larger than the sum of its proper divisors (4449043044209).

201111020212111 is a wasteful number, since it uses less digits than its factorization.

201111020212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23791674173.

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

Adding to 201111020212111 its reverse (111212020111102), we get a palindrome (312323040323213).

The spelling of 201111020212111 in words is "two hundred one trillion, one hundred eleven billion, twenty million, two hundred twelve thousand, one hundred eleven".