1001010101172 has 24 divisors (see below), whose sum is σ = 2340333769536. Its totient is φ = 333006671808.

The previous prime is 1001010101171. The next prime is 1001010101239. The reversal of 1001010101172 is 2711010101001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001010101171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82913953 + ... + 82926024.

It is an arithmetic number, because the mean of its divisors is an integer number (97513907064).

Almost surely, 2^{1001010101172} is an apocalyptic number.

1001010101172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001010101172 is an abundant number, since it is smaller than the sum of its proper divisors (1339323668364).

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

1001010101172 is a wasteful number, since it uses less digits than its factorization.

1001010101172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165840487 (or 165840485 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 15.

Adding to 1001010101172 its reverse (2711010101001), we get a palindrome (3712020202173).

The spelling of 1001010101172 in words is "one trillion, one billion, ten million, one hundred one thousand, one hundred seventy-two".