1220225301 has 6 divisors (see below), whose sum is σ = 1762547670. Its totient is φ = 813483528.

The previous prime is 1220225291. The next prime is 1220225311. The reversal of 1220225301 is 1035220221.

It is an interprime number because it is at equal distance from previous prime (1220225291) and next prime (1220225311).

It can be written as a sum of positive squares in only one way, i.e., 652547025 + 567678276 = 25545^2 + 23826^2 .

It is not a de Polignac number, because 1220225301 - 2¹⁰ = 1220224277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220225311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67790286 + ... + 67790303.

It is an arithmetic number, because the mean of its divisors is an integer number (293757945).

Almost surely, 2^1220225301 is an apocalyptic number.

It is an amenable number.

1220225301 is a deficient number, since it is larger than the sum of its proper divisors (542322369).

1220225301 is a wasteful number, since it uses less digits than its factorization.

1220225301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135580595 (or 135580592 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1220225301 is about 34931.7234186921. The cubic root of 1220225301 is about 1068.5955022797.

Adding to 1220225301 its reverse (1035220221), we get a palindrome (2255445522).

The spelling of 1220225301 in words is "one billion, two hundred twenty million, two hundred twenty-five thousand, three hundred one".