172216002 has 16 divisors (see below), whose sum is σ = 393636672. Its totient is φ = 49204560.

The previous prime is 172215977. The next prime is 172216003. The reversal of 172216002 is 200612271.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 172216002.

It is not an unprimeable number, because it can be changed into a prime (172216003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2050149 + ... + 2050232.

It is an arithmetic number, because the mean of its divisors is an integer number (24602292).

Almost surely, 2^172216002 is an apocalyptic number.

172216002 is an abundant number, since it is smaller than the sum of its proper divisors (221420670).

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

172216002 is a wasteful number, since it uses less digits than its factorization.

172216002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100393.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 172216002 is about 13123.1094638428. The cubic root of 172216002 is about 556.3624799344.

Adding to 172216002 its reverse (200612271), we get a palindrome (372828273).

The spelling of 172216002 in words is "one hundred seventy-two million, two hundred sixteen thousand, two".