22120101100020 has 96 divisors (see below), whose sum is σ = 77219262038016. Its totient is φ = 4596384643200.

The previous prime is 22120101099983. The next prime is 22120101100037. The reversal of 22120101100020 is 2000110102122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22120101099969 and 22120101100005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2393945716 + ... + 2393954955.

It is an arithmetic number, because the mean of its divisors is an integer number (804367312896).

Almost surely, 2^{22120101100020} is an apocalyptic number.

22120101100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120101100020 is an abundant number, since it is smaller than the sum of its proper divisors (55099160937996).

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

22120101100020 is a wasteful number, since it uses less digits than its factorization.

22120101100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4787900701 (or 4787900699 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22120101100020 its reverse (2000110102122), we get a palindrome (24120211202142).

The spelling of 22120101100020 in words is "twenty-two trillion, one hundred twenty billion, one hundred one million, one hundred thousand, twenty".