172224022 has 8 divisors (see below), whose sum is σ = 259297200. Its totient is φ = 85791624.

The previous prime is 172224001. The next prime is 172224053. The reversal of 172224022 is 220422271.

It is a happy number.

172224022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×172224022² = 59322227507712968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 172223984 and 172224002.

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, 159522 + ... + 160597.

It is an arithmetic number, because the mean of its divisors is an integer number (32412150).

Almost surely, 2^172224022 is an apocalyptic number.

172224022 is a deficient number, since it is larger than the sum of its proper divisors (87073178).

172224022 is a wasteful number, since it uses less digits than its factorization.

172224022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320390.

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 172224022 is about 13123.4150281091. The cubic root of 172224022 is about 556.3711162937.

Adding to 172224022 its reverse (220422271), we get a palindrome (392646293).

The spelling of 172224022 in words is "one hundred seventy-two million, two hundred twenty-four thousand, twenty-two".