1220420302 has 16 divisors (see below), whose sum is σ = 1843601760. Its totient is φ = 605894688.

The previous prime is 1220420261. The next prime is 1220420303. The reversal of 1220420302 is 2030240221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220420303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476008 + ... + 478564.

It is an arithmetic number, because the mean of its divisors is an integer number (115225110).

Almost surely, 2^1220420302 is an apocalyptic number.

1220420302 is a deficient number, since it is larger than the sum of its proper divisors (623181458).

1220420302 is a wasteful number, since it uses less digits than its factorization.

1220420302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4155.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1220420302 is about 34934.5144806680. The cubic root of 1220420302 is about 1068.6524223944.

Adding to 1220420302 its reverse (2030240221), we get a palindrome (3250660523).

The spelling of 1220420302 in words is "one billion, two hundred twenty million, four hundred twenty thousand, three hundred two".