10221221300 has 18 divisors (see below), whose sum is σ = 22180050438. Its totient is φ = 4088488480.

The previous prime is 10221221291. The next prime is 10221221369. The reversal of 10221221300 is 312212201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 684136336 + 9537084964 = 26156^2 + 97658^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51106007 + ... + 51106206.

Almost surely, 2^10221221300 is an apocalyptic number.

10221221300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221221300 is an abundant number, since it is smaller than the sum of its proper divisors (11958829138).

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

10221221300 is a wasteful number, since it uses less digits than its factorization.

10221221300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102212227 (or 102212220 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10221221300 its reverse (312212201), we get a palindrome (10533433501).

Subtracting from 10221221300 its reverse (312212201), we obtain a palindrome (9909009099).

The spelling of 10221221300 in words is "ten billion, two hundred twenty-one million, two hundred twenty-one thousand, three hundred".