1320221301 has 16 divisors (see below), whose sum is σ = 2023400064. Its totient is φ = 750049344.

The previous prime is 1320221297. The next prime is 1320221311. The reversal of 1320221301 is 1031220231.

It is not a de Polignac number, because 1320221301 - 2² = 1320221297 is a prime.

It is a super-2 number, since 2×1320221301² = 3485968567228265202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320221311) 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, 178066 + ... + 185331.

It is an arithmetic number, because the mean of its divisors is an integer number (126462504).

Almost surely, 2^1320221301 is an apocalyptic number.

It is an amenable number.

1320221301 is a deficient number, since it is larger than the sum of its proper divisors (703178763).

1320221301 is a wasteful number, since it uses less digits than its factorization.

1320221301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363580.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1320221301 is about 36334.8496763094. The cubic root of 1320221301 is about 1097.0226097466.

Adding to 1320221301 its reverse (1031220231), we get a palindrome (2351441532).

The spelling of 1320221301 in words is "one billion, three hundred twenty million, two hundred twenty-one thousand, three hundred one".