21467222045173 has 4 divisors (see below), whose sum is σ = 21467235382560. Its totient is φ = 21467208707788.

The previous prime is 21467222045147. The next prime is 21467222045233. The reversal of 21467222045173 is 37154022276412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21467222045173 - 2⁵ = 21467222045141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21467222045123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3860065 + ... + 7604902.

It is an arithmetic number, because the mean of its divisors is an integer number (5366808845640).

Almost surely, 2^{21467222045173} is an apocalyptic number.

It is an amenable number.

21467222045173 is a deficient number, since it is larger than the sum of its proper divisors (13337387).

21467222045173 is a wasteful number, since it uses less digits than its factorization.

21467222045173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13337386.

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 21467222045173 in words is "twenty-one trillion, four hundred sixty-seven billion, two hundred twenty-two million, forty-five thousand, one hundred seventy-three".