201022011111 has 16 divisors (see below), whose sum is σ = 284702498784. Its totient is φ = 125728472064.

The previous prime is 201022011107. The next prime is 201022011119. The reversal of 201022011111 is 111110220102.

It is not a de Polignac number, because 201022011111 - 2² = 201022011107 is a prime.

It is a super-2 number, since 2×201022011111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201022011119) 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, 6280536 + ... + 6312461.

It is an arithmetic number, because the mean of its divisors is an integer number (17793906174).

Almost surely, 2^201022011111 is an apocalyptic number.

201022011111 is a deficient number, since it is larger than the sum of its proper divisors (83680487673).

201022011111 is a wasteful number, since it uses less digits than its factorization.

201022011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12593330.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 201022011111 its reverse (111110220102), we get a palindrome (312132231213).

The spelling of 201022011111 in words is "two hundred one billion, twenty-two million, eleven thousand, one hundred eleven".