1301222115 has 24 divisors (see below), whose sum is σ = 2270400288. Its totient is φ = 689385600.

The previous prime is 1301222107. The next prime is 1301222129. The reversal of 1301222115 is 5112221031.

It is not a de Polignac number, because 1301222115 - 2³ = 1301222107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88954 + ... + 102543.

It is an arithmetic number, because the mean of its divisors is an integer number (94600012).

Almost surely, 2^1301222115 is an apocalyptic number.

1301222115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1301222115 is a deficient number, since it is larger than the sum of its proper divisors (969178173).

1301222115 is a wasteful number, since it uses less digits than its factorization.

1301222115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191659 (or 191656 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1301222115 is about 36072.4564591878. The cubic root of 1301222115 is about 1091.7347778985.

Adding to 1301222115 its reverse (5112221031), we get a palindrome (6413443146).

The spelling of 1301222115 in words is "one billion, three hundred one million, two hundred twenty-two thousand, one hundred fifteen".