1220422003 has 8 divisors (see below), whose sum is σ = 1291755920. Its totient is φ = 1149798240.

The previous prime is 1220421997. The next prime is 1220422009. The reversal of 1220422003 is 3002240221.

It is an interprime number because it is at equal distance from previous prime (1220421997) and next prime (1220422009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220422003 - 2⁹ = 1220421491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220422009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174000 + ... + 180877.

It is an arithmetic number, because the mean of its divisors is an integer number (161469490).

Almost surely, 2^1220422003 is an apocalyptic number.

1220422003 is a deficient number, since it is larger than the sum of its proper divisors (71333917).

1220422003 is a wasteful number, since it uses less digits than its factorization.

1220422003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355077.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1220422003 is about 34934.5388262104. The cubic root of 1220422003 is about 1068.6529188838.

Adding to 1220422003 its reverse (3002240221), we get a palindrome (4222662224).

The spelling of 1220422003 in words is "one billion, two hundred twenty million, four hundred twenty-two thousand, three".