201001122222111 has 24 divisors (see below), whose sum is σ = 293415610003776. Its totient is φ = 132580771790400.

The previous prime is 201001122222091. The next prime is 201001122222119. The reversal of 201001122222111 is 111222221100102.

201001122222111 is a `hidden beast` number, since 20 + 100 + 112 + 222 + 211 + 1 = 666.

It is not a de Polignac number, because 201001122222111 - 2⁷ = 201001122221983 is a prime.

It is a super-2 number, since 2×201001122222111² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001122222119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76402680 + ... + 78989693.

It is an arithmetic number, because the mean of its divisors is an integer number (12225650416824).

Almost surely, 2^{201001122222111} is an apocalyptic number.

201001122222111 is a deficient number, since it is larger than the sum of its proper divisors (92414487781665).

201001122222111 is a wasteful number, since it uses less digits than its factorization.

201001122222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155393903 (or 155393900 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201001122222111 its reverse (111222221100102), we get a palindrome (312223343322213).

The spelling of 201001122222111 in words is "two hundred one trillion, one billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred eleven".