10221220222100 has 36 divisors (see below), whose sum is σ = 22240484059584. Its totient is φ = 4077347779680.

The previous prime is 10221220222097. The next prime is 10221220222153. The reversal of 10221220222100 is 122202212201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139216982 + ... + 139290381.

Almost surely, 2^{10221220222100} is an apocalyptic number.

10221220222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10221220222100 is an abundant number, since it is smaller than the sum of its proper divisors (12019263837484).

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

10221220222100 is a wasteful number, since it uses less digits than its factorization.

10221220222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278507744 (or 278507737 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10221220222100 its reverse (122202212201), we get a palindrome (10343422434301).

The spelling of 10221220222100 in words is "ten trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred".