22121120011020 has 24 divisors (see below), whose sum is σ = 61939136031024. Its totient is φ = 5898965336256.

The previous prime is 22121120010947. The next prime is 22121120011027. The reversal of 22121120011020 is 2011002112122.

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

It is not an unprimeable number, because it can be changed into a prime (22121120011027) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 184342666699 + ... + 184342666818.

It is an arithmetic number, because the mean of its divisors is an integer number (2580797334626).

Almost surely, 2^{22121120011020} is an apocalyptic number.

22121120011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22121120011020 is an abundant number, since it is smaller than the sum of its proper divisors (39818016020004).

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

22121120011020 is a wasteful number, since it uses less digits than its factorization.

22121120011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368685333529 (or 368685333527 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22121120011020 its reverse (2011002112122), we get a palindrome (24132122123142).

The spelling of 22121120011020 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty million, eleven thousand, twenty".