72222214285 has 8 divisors (see below), whose sum is σ = 93333323160. Its totient is φ = 53333327424.

The previous prime is 72222214277. The next prime is 72222214313. The reversal of 72222214285 is 58241222227.

It can be written as a sum of positive squares in 4 ways, for example, as 384277609 + 71837936676 = 19603^2 + 268026^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72222214285 - 2³ = 72222214277 is a prime.

It is a super-2 number, since 2×72222214285² (a number of 23 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 7 ways as a sum of consecutive naturals, for example, 555555430 + ... + 555555559.

It is an arithmetic number, because the mean of its divisors is an integer number (11666665395).

Almost surely, 2^72222214285 is an apocalyptic number.

It is an amenable number.

72222214285 is a deficient number, since it is larger than the sum of its proper divisors (21111108875).

72222214285 is a wasteful number, since it uses less digits than its factorization.

72222214285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111111007.

The product of its digits is 71680, while the sum is 37.

It can be divided in two parts, 722222142 and 85, that added together give a palindrome (722222227).

The spelling of 72222214285 in words is "seventy-two billion, two hundred twenty-two million, two hundred fourteen thousand, two hundred eighty-five".