10221202111172 has 48 divisors (see below), whose sum is σ = 19362069663552. Its totient is φ = 4693227557760.

The previous prime is 10221202111171. The next prime is 10221202111261. The reversal of 10221202111172 is 27111120212201.

It is not an unprimeable number, because it can be changed into a prime (10221202111171) 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, 262257647 + ... + 262296617.

It is an arithmetic number, because the mean of its divisors is an integer number (403376451324).

Almost surely, 2^{10221202111172} is an apocalyptic number.

It is an amenable number.

10221202111172 is a deficient number, since it is larger than the sum of its proper divisors (9140867552380).

10221202111172 is a wasteful number, since it uses less digits than its factorization.

10221202111172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64788 (or 64786 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 10221202111172 its reverse (27111120212201), we get a palindrome (37332322323373).

The spelling of 10221202111172 in words is "ten trillion, two hundred twenty-one billion, two hundred two million, one hundred eleven thousand, one hundred seventy-two".