10221212170660 has 48 divisors (see below), whose sum is σ = 22241742969600. Its totient is φ = 3942854383104.

The previous prime is 10221212170649. The next prime is 10221212170669. The reversal of 10221212170660 is 6607121212201.

It is not an unprimeable number, because it can be changed into a prime (10221212170669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75154405 + ... + 75290284.

It is an arithmetic number, because the mean of its divisors is an integer number (463369645200).

Almost surely, 2^{10221212170660} is an apocalyptic number.

10221212170660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221212170660 is an abundant number, since it is smaller than the sum of its proper divisors (12020530798940).

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

10221212170660 is a wasteful number, since it uses less digits than its factorization.

10221212170660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150444820 (or 150444818 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

Adding to 10221212170660 its reverse (6607121212201), we get a palindrome (16828333382861).

The spelling of 10221212170660 in words is "ten trillion, two hundred twenty-one billion, two hundred twelve million, one hundred seventy thousand, six hundred sixty".