2211200121 has 32 divisors (see below), whose sum is σ = 3241389312. Its totient is φ = 1332414720.

The previous prime is 2211200113. The next prime is 2211200141. The reversal of 2211200121 is 1210021122.

2211200121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2211200121 - 2³ = 2211200113 is a prime.

It is a super-2 number, since 2×2211200121² = 9778811950220829282, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2211200097 and 2211200106.

It is not an unprimeable number, because it can be changed into a prime (2211200111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1696356 + ... + 1697658.

It is an arithmetic number, because the mean of its divisors is an integer number (101293416).

Almost surely, 2^2211200121 is an apocalyptic number.

It is an amenable number.

2211200121 is a deficient number, since it is larger than the sum of its proper divisors (1030189191).

2211200121 is a wasteful number, since it uses less digits than its factorization.

2211200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2211200121 is about 47023.3997175874. The cubic root of 2211200121 is about 1302.7948001242.

Adding to 2211200121 its reverse (1210021122), we get a palindrome (3421221243).

The spelling of 2211200121 in words is "two billion, two hundred eleven million, two hundred thousand, one hundred twenty-one".