1301221129 has 8 divisors (see below), whose sum is σ = 1418199552. Its totient is φ = 1186654800.

The previous prime is 1301221109. The next prime is 1301221139. The reversal of 1301221129 is 9211221031.

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 1301221129 - 2²³ = 1292832521 is a prime.

It is a Duffinian 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, 601897 + ... + 604054.

It is an arithmetic number, because the mean of its divisors is an integer number (177274944).

Almost surely, 2^1301221129 is an apocalyptic number.

It is an amenable number.

1301221129 is a deficient number, since it is larger than the sum of its proper divisors (116978423).

1301221129 is a wasteful number, since it uses less digits than its factorization.

1301221129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206047.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1301221129 is about 36072.4427922479. The cubic root of 1301221129 is about 1091.7345021447.

The spelling of 1301221129 in words is "one billion, three hundred one million, two hundred twenty-one thousand, one hundred twenty-nine".