1722112273216 has 28 divisors (see below), whose sum is σ = 3597175310080. Its totient is φ = 815737392000.

The previous prime is 1722112273183. The next prime is 1722112273241. The reversal of 1722112273216 is 6123722112271.

It is a happy number.

It is a super-2 number, since 2×1722112273216² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 708104160 + ... + 708106591.

Almost surely, 2^{1722112273216} is an apocalyptic number.

1722112273216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1722112273216 is an abundant number, since it is smaller than the sum of its proper divisors (1875063036864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1722112273216 is a wasteful number, since it uses less digits than its factorization.

1722112273216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416210782 (or 1416210772 counting only the distinct ones).

The product of its digits is 28224, while the sum is 37.

Adding to 1722112273216 its reverse (6123722112271), we get a palindrome (7845834385487).

The spelling of 1722112273216 in words is "one trillion, seven hundred twenty-two billion, one hundred twelve million, two hundred seventy-three thousand, two hundred sixteen".