10221211022100 has 72 divisors (see below), whose sum is σ = 31848245227680. Its totient is φ = 2515990404480.

The previous prime is 10221211021997. The next prime is 10221211022171. The reversal of 10221211022100 is 122011212201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10221211022100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1310407770 + ... + 1310415569.

Almost surely, 2^{10221211022100} is an apocalyptic number.

10221211022100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221211022100 is an abundant number, since it is smaller than the sum of its proper divisors (21627034205580).

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

10221211022100 is a wasteful number, since it uses less digits than its factorization.

10221211022100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620823369 (or 2620823362 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10221211022100 its reverse (122011212201), we get a palindrome (10343222234301).

The spelling of 10221211022100 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, twenty-two thousand, one hundred".