171001221212002 has 4 divisors (see below), whose sum is σ = 256501831818006. Its totient is φ = 85500610606000.

The previous prime is 171001221211991. The next prime is 171001221212083. The reversal of 171001221212002 is 200212122100171.

171001221212002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 125295360118681 + 45705861093321 = 11193541^2 + 6760611^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42750305302999 + ... + 42750305303002.

Almost surely, 2^{171001221212002} is an apocalyptic number.

171001221212002 is a deficient number, since it is larger than the sum of its proper divisors (85500610606004).

171001221212002 is an equidigital number, since it uses as much as digits as its factorization.

171001221212002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85500610606003.

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 171001221212002 its reverse (200212122100171), we get a palindrome (371213343312173).

The spelling of 171001221212002 in words is "one hundred seventy-one trillion, one billion, two hundred twenty-one million, two hundred twelve thousand, two".