221422047307473 has 16 divisors (see below), whose sum is σ = 295413789144320. Its totient is φ = 147522503648016.

The previous prime is 221422047307423. The next prime is 221422047307493. The reversal of 221422047307473 is 374703740224122.

It is a happy number.

It is not a de Polignac number, because 221422047307473 - 2¹² = 221422047303377 is a prime.

It is a super-2 number, since 2×221422047307473² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221422047307423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739355958 + ... + 739655376.

It is an arithmetic number, because the mean of its divisors is an integer number (18463361821520).

Almost surely, 2^{221422047307473} is an apocalyptic number.

It is an amenable number.

221422047307473 is a deficient number, since it is larger than the sum of its proper divisors (73991741836847).

221422047307473 is a wasteful number, since it uses less digits than its factorization.

221422047307473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452556.

The product of its (nonzero) digits is 3161088, while the sum is 48.

The spelling of 221422047307473 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, three hundred seven thousand, four hundred seventy-three".