171220002 has 32 divisors (see below), whose sum is σ = 354974400. Its totient is φ = 54992448.

The previous prime is 171219991. The next prime is 171220033. The reversal of 171220002 is 200022171.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143653 + ... + 144839.

It is an arithmetic number, because the mean of its divisors is an integer number (11092950).

Almost surely, 2^171220002 is an apocalyptic number.

171220002 is an abundant number, since it is smaller than the sum of its proper divisors (183754398).

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

171220002 is a wasteful number, since it uses less digits than its factorization.

171220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 171220002 is about 13085.1061134406. The cubic root of 171220002 is about 555.2878435456.

Adding to 171220002 its reverse (200022171), we get a palindrome (371242173).

The spelling of 171220002 in words is "one hundred seventy-one million, two hundred twenty thousand, two".