272463223221 has 24 divisors (see below), whose sum is σ = 449796794304. Its totient is φ = 155687650560.

The previous prime is 272463223213. The next prime is 272463223243. The reversal of 272463223221 is 122322364272.

272463223221 is a `hidden beast` number, since 2 + 7 + 2 + 4 + 6 + 322 + 322 + 1 = 666.

It is not a de Polignac number, because 272463223221 - 2³ = 272463223213 is a prime.

It is a super-2 number, since 2×272463223221² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272463223421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2208645 + ... + 2328741.

It is an arithmetic number, because the mean of its divisors is an integer number (18741533096).

Almost surely, 2^272463223221 is an apocalyptic number.

272463223221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

272463223221 is a deficient number, since it is larger than the sum of its proper divisors (177333571083).

272463223221 is a wasteful number, since it uses less digits than its factorization.

272463223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156121 (or 156118 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

Adding to 272463223221 its reverse (122322364272), we get a palindrome (394785587493).

The spelling of 272463223221 in words is "two hundred seventy-two billion, four hundred sixty-three million, two hundred twenty-three thousand, two hundred twenty-one".