1017210571212 has 96 divisors (see below), whose sum is σ = 2652868479744. Its totient is φ = 300676147200.

The previous prime is 1017210571207. The next prime is 1017210571219. The reversal of 1017210571212 is 2121750127101.

It is a self number, because there is not a number n which added to its sum of digits gives 1017210571212.

It is not an unprimeable number, because it can be changed into a prime (1017210571219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41784708 + ... + 41809044.

It is an arithmetic number, because the mean of its divisors is an integer number (27634046664).

Almost surely, 2^{1017210571212} is an apocalyptic number.

1017210571212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1017210571212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1326434239872).

1017210571212 is an abundant number, since it is smaller than the sum of its proper divisors (1635657908532).

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

1017210571212 is a wasteful number, since it uses less digits than its factorization.

1017210571212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32119 (or 32117 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 30.

Adding to 1017210571212 its reverse (2121750127101), we get a palindrome (3138960698313).

The spelling of 1017210571212 in words is "one trillion, seventeen billion, two hundred ten million, five hundred seventy-one thousand, two hundred twelve".