10221211021100 has 36 divisors (see below), whose sum is σ = 22180166696184. Its totient is φ = 4088458826880.

The previous prime is 10221211021093. The next prime is 10221211021127. The reversal of 10221211021100 is 112011212201.

It is a super-2 number, since 2×10221211021100² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31175624 + ... + 31501776.

Almost surely, 2^{10221211021100} is an apocalyptic number.

10221211021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221211021100 is an abundant number, since it is smaller than the sum of its proper divisors (11958955675084).

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

10221211021100 is a wasteful number, since it uses less digits than its factorization.

10221211021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639554 (or 639547 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10221211021100 its reverse (112011212201), we get a palindrome (10333222233301).

The spelling of 10221211021100 in words is "ten trillion, two hundred twenty-one billion, two hundred eleven million, twenty-one thousand, one hundred".