1222123402 has 8 divisors (see below), whose sum is σ = 1841406336. Its totient is φ = 608321292.

The previous prime is 1222123373. The next prime is 1222123411. The reversal of 1222123402 is 2043212221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1222123402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369648 + ... + 1370539.

It is an arithmetic number, because the mean of its divisors is an integer number (230175792).

Almost surely, 2^1222123402 is an apocalyptic number.

1222123402 is a deficient number, since it is larger than the sum of its proper divisors (619282934).

1222123402 is a wasteful number, since it uses less digits than its factorization.

1222123402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740412.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1222123402 is about 34958.8815896619. The cubic root of 1222123402 is about 1069.1492938351.

Adding to 1222123402 its reverse (2043212221), we get a palindrome (3265335623).

The spelling of 1222123402 in words is "one billion, two hundred twenty-two million, one hundred twenty-three thousand, four hundred two".