1220200003 has 4 divisors (see below), whose sum is σ = 1331127288. Its totient is φ = 1109272720.

The previous prime is 1220199997. The next prime is 1220200013. The reversal of 1220200003 is 3000020221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220200003 - 2⁵ = 1220199971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220200013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55463626 + ... + 55463647.

It is an arithmetic number, because the mean of its divisors is an integer number (332781822).

Almost surely, 2^1220200003 is an apocalyptic number.

1220200003 is a deficient number, since it is larger than the sum of its proper divisors (110927285).

1220200003 is a wasteful number, since it uses less digits than its factorization.

1220200003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110927284.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1220200003 is about 34931.3613104328. The cubic root of 1220200003 is about 1068.5881174370.

Adding to 1220200003 its reverse (3000020221), we get a palindrome (4220220224).

The spelling of 1220200003 in words is "one billion, two hundred twenty million, two hundred thousand, three".