20222100002100 has 144 divisors (see below), whose sum is σ = 61075701766016. Its totient is φ = 5160801600000.

The previous prime is 20222100002087. The next prime is 20222100002107. The reversal of 20222100002100 is 120000122202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20222100002107) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 14255776 + ... + 15609975.

Almost surely, 2^{20222100002100} is an apocalyptic number.

20222100002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20222100002100 is an abundant number, since it is smaller than the sum of its proper divisors (40853601763916).

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

20222100002100 is a wasteful number, since it uses less digits than its factorization.

20222100002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29865866 (or 29865859 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20222100002100 its reverse (120000122202), we get a palindrome (20342100124302).

The spelling of 20222100002100 in words is "twenty trillion, two hundred twenty-two billion, one hundred million, two thousand, one hundred".