1220202203 has 16 divisors (see below), whose sum is σ = 1361249280. Its totient is φ = 1084238400.

The previous prime is 1220202143. The next prime is 1220202209. The reversal of 1220202203 is 3022020221.

It is a cyclic number.

It is not a de Polignac number, because 1220202203 - 2¹⁰ = 1220201179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220202209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665498 + ... + 667328.

It is an arithmetic number, because the mean of its divisors is an integer number (85078080).

Almost surely, 2^1220202203 is an apocalyptic number.

1220202203 is a deficient number, since it is larger than the sum of its proper divisors (141047077).

1220202203 is a wasteful number, since it uses less digits than its factorization.

1220202203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3178.

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

The square root of 1220202203 is about 34931.3928007459. The cubic root of 1220202203 is about 1068.5887596520.

Adding to 1220202203 its reverse (3022020221), we get a palindrome (4242222424).

The spelling of 1220202203 in words is "one billion, two hundred twenty million, two hundred two thousand, two hundred three".