2243121210 has 48 divisors (see below), whose sum is σ = 6362310240. Its totient is φ = 543786720.

The previous prime is 2243121163. The next prime is 2243121211. The reversal of 2243121210 is 121213422.

It is a happy number.

2243121210 is a `hidden beast` number, since 2 + 2 + 431 + 21 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2243121211) 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, 1131900 + ... + 1133879.

It is an arithmetic number, because the mean of its divisors is an integer number (132548130).

Almost surely, 2^2243121210 is an apocalyptic number.

2243121210 is an abundant number, since it is smaller than the sum of its proper divisors (4119189030).

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

2243121210 is a wasteful number, since it uses less digits than its factorization.

2243121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265803 (or 2265800 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2243121210 is about 47361.6005852843. The cubic root of 2243121210 is about 1309.0339613669.

Adding to 2243121210 its reverse (121213422), we get a palindrome (2364334632).

It can be divided in two parts, 224312 and 1210, that added together give a palindrome (225522).

The spelling of 2243121210 in words is "two billion, two hundred forty-three million, one hundred twenty-one thousand, two hundred ten".