2212023121 has 16 divisors (see below), whose sum is σ = 2814134400. Its totient is φ = 1723651440.

The previous prime is 2212023113. The next prime is 2212023127. The reversal of 2212023121 is 1213202122.

It is a happy number.

It is not a de Polignac number, because 2212023121 - 2³ = 2212023113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2212023095 and 2212023104.

It is not an unprimeable number, because it can be changed into a prime (2212023127) 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, 289366 + ... + 296911.

It is an arithmetic number, because the mean of its divisors is an integer number (175883400).

Almost surely, 2^2212023121 is an apocalyptic number.

It is an amenable number.

2212023121 is a deficient number, since it is larger than the sum of its proper divisors (602111279).

2212023121 is an equidigital number, since it uses as much as digits as its factorization.

2212023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586309 (or 586295 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2212023121 is about 47032.1498658099. The cubic root of 2212023121 is about 1302.9564117780.

Adding to 2212023121 its reverse (1213202122), we get a palindrome (3425225243).

The spelling of 2212023121 in words is "two billion, two hundred twelve million, twenty-three thousand, one hundred twenty-one".