1222434402 has 64 divisors (see below), whose sum is σ = 2991893760. Its totient is φ = 325011456.

The previous prime is 1222434391. The next prime is 1222434443. The reversal of 1222434402 is 2044342221.

1222434402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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, 53928 + ... + 73164.

It is an arithmetic number, because the mean of its divisors is an integer number (46748340).

Almost surely, 2^1222434402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222434402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495946880).

1222434402 is an abundant number, since it is smaller than the sum of its proper divisors (1769459358).

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

1222434402 is a wasteful number, since it uses less digits than its factorization.

1222434402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19355.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1222434402 is about 34963.3293895190. The cubic root of 1222434402 is about 1069.2399767752.

Adding to 1222434402 its reverse (2044342221), we get a palindrome (3266776623).

The spelling of 1222434402 in words is "one billion, two hundred twenty-two million, four hundred thirty-four thousand, four hundred two".