1301221101 has 8 divisors (see below), whose sum is σ = 1737299520. Its totient is φ = 866311712.

The previous prime is 1301221093. The next prime is 1301221109. The reversal of 1301221101 is 1011221031.

It is an interprime number because it is at equal distance from previous prime (1301221093) and next prime (1301221109).

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 1301221101 - 2³ = 1301221093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301221109) 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, 289656 + ... + 294113.

It is an arithmetic number, because the mean of its divisors is an integer number (217162440).

Almost surely, 2^1301221101 is an apocalyptic number.

It is an amenable number.

1301221101 is a deficient number, since it is larger than the sum of its proper divisors (436078419).

1301221101 is an equidigital number, since it uses as much as digits as its factorization.

1301221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584515.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1301221101 is about 36072.4424041400. The cubic root of 1301221101 is about 1091.7344943139.

Adding to 1301221101 its reverse (1011221031), we get a palindrome (2312442132).

The spelling of 1301221101 in words is "one billion, three hundred one million, two hundred twenty-one thousand, one hundred one".