2000122111 has 16 divisors (see below), whose sum is σ = 2182534144. Its totient is φ = 1821947904.

The previous prime is 2000122087. The next prime is 2000122129. The reversal of 2000122111 is 1112210002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000122111 is a prime.

It is a super-2 number, since 2×2000122111² = 8000976917822192642, which 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 (2000126111) 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, 315505 + ... + 321781.

It is an arithmetic number, because the mean of its divisors is an integer number (136408384).

Almost surely, 2^2000122111 is an apocalyptic number.

2000122111 is a deficient number, since it is larger than the sum of its proper divisors (182412033).

2000122111 is a wasteful number, since it uses less digits than its factorization.

2000122111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6610.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 2000122111 is about 44722.7247716415. The cubic root of 2000122111 is about 1259.9466910763.

Adding to 2000122111 its reverse (1112210002), we get a palindrome (3112332113).

The spelling of 2000122111 in words is "two billion, one hundred twenty-two thousand, one hundred eleven".