22100011221020 has 96 divisors (see below), whose sum is σ = 50254006920768. Its totient is φ = 8133410783232.

The previous prime is 22100011221017. The next prime is 22100011221097. The reversal of 22100011221020 is 2012211000122.

It is a super-2 number, since 2×22100011221020² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22100011220986 and 22100011221004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1135214 + ... + 6744533.

It is an arithmetic number, because the mean of its divisors is an integer number (523479238758).

Almost surely, 2^{22100011221020} is an apocalyptic number.

22100011221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22100011221020 is an abundant number, since it is smaller than the sum of its proper divisors (28153995699748).

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

22100011221020 is a wasteful number, since it uses less digits than its factorization.

22100011221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7879959 (or 7879957 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22100011221020 its reverse (2012211000122), we get a palindrome (24112222221142).

The spelling of 22100011221020 in words is "twenty-two trillion, one hundred billion, eleven million, two hundred twenty-one thousand, twenty".