22120012021020 has 24 divisors (see below), whose sum is σ = 61936033659024. Its totient is φ = 5898669872256.

The previous prime is 22120012021007. The next prime is 22120012021039. The reversal of 22120012021020 is 2012021002122.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184333433449 + ... + 184333433568.

It is an arithmetic number, because the mean of its divisors is an integer number (2580668069126).

Almost surely, 2^{22120012021020} is an apocalyptic number.

22120012021020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22120012021020 is an abundant number, since it is smaller than the sum of its proper divisors (39816021638004).

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

22120012021020 is a wasteful number, since it uses less digits than its factorization.

22120012021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368666867029 (or 368666867027 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22120012021020 its reverse (2012021002122), we get a palindrome (24132033023142).

The spelling of 22120012021020 in words is "twenty-two trillion, one hundred twenty billion, twelve million, twenty-one thousand, twenty".