1215970227 has 24 divisors (see below), whose sum is σ = 1851886400. Its totient is φ = 766717488.

The previous prime is 1215970213. The next prime is 1215970267. The reversal of 1215970227 is 7220795121.

It is not a de Polignac number, because 1215970227 - 2¹⁹ = 1215445939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1215970191 and 1215970200.

It is not an unprimeable number, because it can be changed into a prime (1215970207) 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 23 ways as a sum of consecutive naturals, for example, 104424 + ... + 115482.

Almost surely, 2^1215970227 is an apocalyptic number.

1215970227 is a deficient number, since it is larger than the sum of its proper divisors (635916173).

1215970227 is a wasteful number, since it uses less digits than its factorization.

1215970227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11727 (or 11724 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 36.

The square root of 1215970227 is about 34870.7646460470. The cubic root of 1215970227 is about 1067.3519481981.

The spelling of 1215970227 in words is "one billion, two hundred fifteen million, nine hundred seventy thousand, two hundred twenty-seven".