2121230226 has 64 divisors (see below), whose sum is σ = 4429002240. Its totient is φ = 676796160.

The previous prime is 2121230213. The next prime is 2121230249. The reversal of 2121230226 is 6220321212.

It is a super-2 number, since 2×2121230226² = 8999235343392022152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5452840 + ... + 5453228.

It is an arithmetic number, because the mean of its divisors is an integer number (69203160).

Almost surely, 2^2121230226 is an apocalyptic number.

2121230226 is an abundant number, since it is smaller than the sum of its proper divisors (2307772014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121230226 is a wasteful number, since it uses less digits than its factorization.

2121230226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2121230226 is about 46056.8151960163. The cubic root of 2121230226 is about 1284.8800982262.

Adding to 2121230226 its reverse (6220321212), we get a palindrome (8341551438).

The spelling of 2121230226 in words is "two billion, one hundred twenty-one million, two hundred thirty thousand, two hundred twenty-six".