1201232215 has 4 divisors (see below), whose sum is σ = 1441478664. Its totient is φ = 960985768.

The previous prime is 1201232147. The next prime is 1201232243. The reversal of 1201232215 is 5122321021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5122321021 = 4591 ⋅1115731.

It is a cyclic number.

It is not a de Polignac number, because 1201232215 - 2¹⁹ = 1200707927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201232192 and 1201232201.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 120123217 + ... + 120123226.

It is an arithmetic number, because the mean of its divisors is an integer number (360369666).

Almost surely, 2^1201232215 is an apocalyptic number.

1201232215 is a deficient number, since it is larger than the sum of its proper divisors (240246449).

1201232215 is an equidigital number, since it uses as much as digits as its factorization.

1201232215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240246448.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1201232215 is about 34658.7970795295. The cubic root of 1201232215 is about 1063.0221735971.

Adding to 1201232215 its reverse (5122321021), we get a palindrome (6323553236).

The spelling of 1201232215 in words is "one billion, two hundred one million, two hundred thirty-two thousand, two hundred fifteen".