78102211022 has 32 divisors (see below), whose sum is σ = 131958872064. Its totient is φ = 34347333600.

The previous prime is 78102211009. The next prime is 78102211063. The reversal of 78102211022 is 22011220187.

It is a super-3 number, since 3×78102211022³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78102210982 and 78102211000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3332168 + ... + 3355524.

It is an arithmetic number, because the mean of its divisors is an integer number (4123714752).

Almost surely, 2^78102211022 is an apocalyptic number.

78102211022 is a deficient number, since it is larger than the sum of its proper divisors (53856661042).

78102211022 is a wasteful number, since it uses less digits than its factorization.

78102211022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28304.

The product of its (nonzero) digits is 896, while the sum is 26.

The spelling of 78102211022 in words is "seventy-eight billion, one hundred two million, two hundred eleven thousand, twenty-two".