7221174412642 has 16 divisors (see below), whose sum is σ = 10952116817400. Its totient is φ = 3570595966080.

The previous prime is 7221174412601. The next prime is 7221174412643. The reversal of 7221174412642 is 2462144711227.

It can be written as a sum of positive squares in 4 ways, for example, as 6642006229681 + 579168182961 = 2577209^2 + 761031^2 .

It is not an unprimeable number, because it can be changed into a prime (7221174412643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31675917 + ... + 31903072.

Almost surely, 2^{7221174412642} is an apocalyptic number.

7221174412642 is a deficient number, since it is larger than the sum of its proper divisors (3730942404758).

7221174412642 is a wasteful number, since it uses less digits than its factorization.

7221174412642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63579621.

The product of its digits is 301056, while the sum is 43.

The spelling of 7221174412642 in words is "seven trillion, two hundred twenty-one billion, one hundred seventy-four million, four hundred twelve thousand, six hundred forty-two".