1122144015 has 16 divisors (see below), whose sum is σ = 1813942368. Its totient is φ = 592306176.

The previous prime is 1122144011. The next prime is 1122144043. The reversal of 1122144015 is 5104412211.

It is not a de Polignac number, because 1122144015 - 2² = 1122144011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122143982 and 1122144000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122144011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384162 + ... + 387071.

It is an arithmetic number, because the mean of its divisors is an integer number (113371398).

Almost surely, 2^1122144015 is an apocalyptic number.

1122144015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1122144015 is a deficient number, since it is larger than the sum of its proper divisors (691798353).

1122144015 is an equidigital number, since it uses as much as digits as its factorization.

1122144015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771338.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1122144015 is about 33498.4180969788. The cubic root of 1122144015 is about 1039.1610637607.

Adding to 1122144015 its reverse (5104412211), we get a palindrome (6226556226).

The spelling of 1122144015 in words is "one billion, one hundred twenty-two million, one hundred forty-four thousand, fifteen".