1223213202 has 24 divisors (see below), whose sum is σ = 2657531136. Its totient is φ = 406624536.

The previous prime is 1223213153. The next prime is 1223213227. The reversal of 1223213202 is 2023123221.

1223213202 is a `hidden beast` number, since 1 + 22 + 321 + 320 + 2 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85978 + ... + 99189.

It is an arithmetic number, because the mean of its divisors is an integer number (110730464).

Almost surely, 2^1223213202 is an apocalyptic number.

1223213202 is an abundant number, since it is smaller than the sum of its proper divisors (1434317934).

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

1223213202 is a wasteful number, since it uses less digits than its factorization.

1223213202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185542 (or 185539 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1223213202 is about 34974.4649994821. The cubic root of 1223213202 is about 1069.4669957234.

Adding to 1223213202 its reverse (2023123221), we get a palindrome (3246336423).

The spelling of 1223213202 in words is "one billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred two".