2212387509 has 24 divisors (see below), whose sum is σ = 3129708288. Its totient is φ = 1388689920.

The previous prime is 2212387483. The next prime is 2212387517. The reversal of 2212387509 is 9057832122.

It is not a de Polignac number, because 2212387509 - 2¹³ = 2212379317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212387519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 118629 + ... + 136005.

It is an arithmetic number, because the mean of its divisors is an integer number (130404512).

Almost surely, 2^2212387509 is an apocalyptic number.

It is an amenable number.

2212387509 is a deficient number, since it is larger than the sum of its proper divisors (917320779).

2212387509 is a wasteful number, since it uses less digits than its factorization.

2212387509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17485 (or 17448 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 2212387509 is about 47036.0235245285. The cubic root of 2212387509 is about 1303.0279534674.

The spelling of 2212387509 in words is "two billion, two hundred twelve million, three hundred eighty-seven thousand, five hundred nine".