78022012022212 has 24 divisors (see below), whose sum is σ = 137627856866304. Its totient is φ = 38699830727712.

The previous prime is 78022012022177. The next prime is 78022012022219. The reversal of 78022012022212 is 21222021022087.

It is not an unprimeable number, because it can be changed into a prime (78022012022219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3019738 + ... + 12851569.

It is an arithmetic number, because the mean of its divisors is an integer number (5734494036096).

Almost surely, 2^{78022012022212} is an apocalyptic number.

It is an amenable number.

78022012022212 is a deficient number, since it is larger than the sum of its proper divisors (59605844844092).

78022012022212 is a wasteful number, since it uses less digits than its factorization.

78022012022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15881115 (or 15881113 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

Adding to 78022012022212 its reverse (21222021022087), we get a palindrome (99244033044299).

The spelling of 78022012022212 in words is "seventy-eight trillion, twenty-two billion, twelve million, twenty-two thousand, two hundred twelve".