78221001041042 has 16 divisors (see below), whose sum is σ = 118526271639552. Its totient is φ = 38712459985200.

The previous prime is 78221001040993. The next prime is 78221001041087. The reversal of 78221001041042 is 24014010012287.

It is a super-2 number, since 2×78221001041042² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53313728 + ... + 54761259.

It is an arithmetic number, because the mean of its divisors is an integer number (7407891977472).

Almost surely, 2^{78221001041042} is an apocalyptic number.

78221001041042 is a deficient number, since it is larger than the sum of its proper divisors (40305270598510).

78221001041042 is a wasteful number, since it uses less digits than its factorization.

78221001041042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108078673.

The product of its (nonzero) digits is 7168, while the sum is 32.

The spelling of 78221001041042 in words is "seventy-eight trillion, two hundred twenty-one billion, one million, forty-one thousand, forty-two".