42220115 has 24 divisors (see below), whose sum is σ = 59220720. Its totient is φ = 28811328.

The previous prime is 42220103. The next prime is 42220127. The reversal of 42220115 is 51102224.

It is an interprime number because it is at equal distance from previous prime (42220103) and next prime (42220127).

It is not a de Polignac number, because 42220115 - 2⁴ = 42220099 is a prime.

It is a super-2 number, since 2×42220115² = 3565076221226450, which contains 22 as substring.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 42220093 and 42220102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95084 + ... + 95526.

It is an arithmetic number, because the mean of its divisors is an integer number (2467530).

Almost surely, 2^42220115 is an apocalyptic number.

42220115 is a deficient number, since it is larger than the sum of its proper divisors (17000605).

42220115 is a wasteful number, since it uses less digits than its factorization.

42220115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 42220115 is about 6497.7007471874. The cubic root of 42220115 is about 348.2088492912.

Adding to 42220115 its reverse (51102224), we get a palindrome (93322339).

The spelling of 42220115 in words is "forty-two million, two hundred twenty thousand, one hundred fifteen".