1220031202 has 32 divisors (see below), whose sum is σ = 1990356480. Its totient is φ = 557539200.

The previous prime is 1220031181. The next prime is 1220031209. The reversal of 1220031202 is 2021300221.

It is a super-2 number, since 2×1220031202² = 2976952267707129608, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1220031209) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2029702 + ... + 2030302.

It is an arithmetic number, because the mean of its divisors is an integer number (62198640).

Almost surely, 2^1220031202 is an apocalyptic number.

1220031202 is a deficient number, since it is larger than the sum of its proper divisors (770325278).

1220031202 is a wasteful number, since it uses less digits than its factorization.

1220031202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1220031202 is about 34928.9450456208. The cubic root of 1220031202 is about 1068.5388394331.

Adding to 1220031202 its reverse (2021300221), we get a palindrome (3241331423).

The spelling of 1220031202 in words is "one billion, two hundred twenty million, thirty-one thousand, two hundred two".