1224212402 has 8 divisors (see below), whose sum is σ = 2098649856. Its totient is φ = 524662452.

The previous prime is 1224212369. The next prime is 1224212411. The reversal of 1224212402 is 2042124221.

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

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, 43721858 + ... + 43721885.

It is an arithmetic number, because the mean of its divisors is an integer number (262331232).

Almost surely, 2^1224212402 is an apocalyptic number.

1224212402 is a deficient number, since it is larger than the sum of its proper divisors (874437454).

1224212402 is an equidigital number, since it uses as much as digits as its factorization.

1224212402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87443752.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1224212402 is about 34988.7467909327. The cubic root of 1224212402 is about 1069.7581198387.

Adding to 1224212402 its reverse (2042124221), we get a palindrome (3266336623).

The spelling of 1224212402 in words is "one billion, two hundred twenty-four million, two hundred twelve thousand, four hundred two".