1220402030 has 16 divisors (see below), whose sum is σ = 2197160640. Its totient is φ = 488063712.

The previous prime is 1220401993. The next prime is 1220402077. The reversal of 1220402030 is 302040221.

It is a super-2 number, since 2×1220402030² = 2978762229656241800, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220401996 and 1220402014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62507 + ... + 79673.

It is an arithmetic number, because the mean of its divisors is an integer number (137322540).

Almost surely, 2^1220402030 is an apocalyptic number.

1220402030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220402030 is a deficient number, since it is larger than the sum of its proper divisors (976758610).

1220402030 is a wasteful number, since it uses less digits than its factorization.

1220402030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24283.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1220402030 is about 34934.2529618139. The cubic root of 1220402030 is about 1068.6470891186.

Adding to 1220402030 its reverse (302040221), we get a palindrome (1522442251).

The spelling of 1220402030 in words is "one billion, two hundred twenty million, four hundred two thousand, thirty".