1220225003 has 16 divisors (see below), whose sum is σ = 1296906240. Its totient is φ = 1145669184.

The previous prime is 1220224991. The next prime is 1220225021. The reversal of 1220225003 is 3005220221.

It is a cyclic number.

It is not a de Polignac number, because 1220225003 - 2¹⁸ = 1219962859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220225033) 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, 372788 + ... + 376046.

It is an arithmetic number, because the mean of its divisors is an integer number (81056640).

Almost surely, 2^1220225003 is an apocalyptic number.

1220225003 is a deficient number, since it is larger than the sum of its proper divisors (76681237).

1220225003 is a wasteful number, since it uses less digits than its factorization.

1220225003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1220225003 is about 34931.7191532281. The cubic root of 1220225003 is about 1068.5954152899.

Adding to 1220225003 its reverse (3005220221), we get a palindrome (4225445224).

The spelling of 1220225003 in words is "one billion, two hundred twenty million, two hundred twenty-five thousand, three".