1301222131 has 8 divisors (see below), whose sum is σ = 1419885504. Its totient is φ = 1182620520.

The previous prime is 1301222129. The next prime is 1301222147. The reversal of 1301222131 is 1312221031.

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 1301222131 - 2¹ = 1301222129 is a prime.

It is a super-2 number, since 2×1301222131² = 3386358068408362322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301222101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36120 + ... + 62506.

It is an arithmetic number, because the mean of its divisors is an integer number (177485688).

Almost surely, 2^1301222131 is an apocalyptic number.

1301222131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1301222131 is a deficient number, since it is larger than the sum of its proper divisors (118663373).

1301222131 is a wasteful number, since it uses less digits than its factorization.

1301222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30881.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1301222131 is about 36072.4566809637. The cubic root of 1301222131 is about 1091.7347823732.

Adding to 1301222131 its reverse (1312221031), we get a palindrome (2613443162).

The spelling of 1301222131 in words is "one billion, three hundred one million, two hundred twenty-two thousand, one hundred thirty-one".