72122222098 has 8 divisors (see below), whose sum is σ = 108195804108. Its totient is φ = 36056954064.

The previous prime is 72122222063. The next prime is 72122222099. The reversal of 72122222098 is 89022222127.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 69967127169 + 2155094929 = 264513^2 + 46423^2 .

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

It is a super-2 number, since 2×72122222098² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72122222099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2056761 + ... + 2091532.

Almost surely, 2^72122222098 is an apocalyptic number.

72122222098 is a deficient number, since it is larger than the sum of its proper divisors (36073582010).

72122222098 is a wasteful number, since it uses less digits than its factorization.

72122222098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156988.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 72122222098 in words is "seventy-two billion, one hundred twenty-two million, two hundred twenty-two thousand, ninety-eight".