1220203996 has 24 divisors (see below), whose sum is σ = 2339761536. Its totient is φ = 552190320.

The previous prime is 1220203987. The next prime is 1220204009. The reversal of 1220203996 is 6993020221.

It is a super-3 number, since 3×1220203996³ (a number of 28 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51096 + ... + 71071.

It is an arithmetic number, because the mean of its divisors is an integer number (97490064).

Almost surely, 2^1220203996 is an apocalyptic number.

It is an amenable number.

1220203996 is a deficient number, since it is larger than the sum of its proper divisors (1119557540).

1220203996 is a wasteful number, since it uses less digits than its factorization.

1220203996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122409 (or 122407 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 1220203996 is about 34931.4184653300. The cubic root of 1220203996 is about 1068.5892830567.

The spelling of 1220203996 in words is "one billion, two hundred twenty million, two hundred three thousand, nine hundred ninety-six".