1422221402 has 16 divisors (see below), whose sum is σ = 2566415040. Its totient is φ = 577443168.

The previous prime is 1422221387. The next prime is 1422221453. The reversal of 1422221402 is 2041222241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2673083 + ... + 2673614.

It is an arithmetic number, because the mean of its divisors is an integer number (160400940).

Almost surely, 2^1422221402 is an apocalyptic number.

1422221402 is a deficient number, since it is larger than the sum of its proper divisors (1144193638).

1422221402 is a wasteful number, since it uses less digits than its factorization.

1422221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5346725.

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

The square root of 1422221402 is about 37712.3507885679. The cubic root of 1422221402 is about 1124.5766708808.

Adding to 1422221402 its reverse (2041222241), we get a palindrome (3463443643).

The spelling of 1422221402 in words is "one billion, four hundred twenty-two million, two hundred twenty-one thousand, four hundred two".