11922372015 has 16 divisors (see below), whose sum is σ = 19226001408. Its totient is φ = 6308529696.

The previous prime is 11922371957. The next prime is 11922372029. The reversal of 11922372015 is 51027322911.

It is not a de Polignac number, because 11922372015 - 2¹⁷ = 11922240943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3127327 + ... + 3131136.

It is an arithmetic number, because the mean of its divisors is an integer number (1201625088).

Almost surely, 2^11922372015 is an apocalyptic number.

11922372015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11922372015 is a deficient number, since it is larger than the sum of its proper divisors (7303629393).

11922372015 is a wasteful number, since it uses less digits than its factorization.

11922372015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6258598.

The product of its (nonzero) digits is 7560, while the sum is 33.

Adding to 11922372015 its reverse (51027322911), we get a palindrome (62949694926).

The spelling of 11922372015 in words is "eleven billion, nine hundred twenty-two million, three hundred seventy-two thousand, fifteen".