78022122 has 32 divisors (see below), whose sum is σ = 165801600. Its totient is φ = 24429888.

The previous prime is 78022121. The next prime is 78022123. The reversal of 78022122 is 22122087.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (78022121) and next prime (78022123).

It is a junction number, because it is equal to n+sod(n) for n = 78022092 and 78022101.

It is not an unprimeable number, because it can be changed into a prime (78022121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379 + ... + 12497.

It is an arithmetic number, because the mean of its divisors is an integer number (5181300).

Almost surely, 2^78022122 is an apocalyptic number.

78022122 is an abundant number, since it is smaller than the sum of its proper divisors (87779478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78022122 is a wasteful number, since it uses less digits than its factorization.

78022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 78022122 is about 8833.0131891671. The cubic root of 78022122 is about 427.3062574095.

The spelling of 78022122 in words is "seventy-eight million, twenty-two thousand, one hundred twenty-two".