20022221111120 has 20 divisors (see below), whose sum is σ = 46551664083540. Its totient is φ = 8008888444416.

The previous prime is 20022221111117. The next prime is 20022221111173. The reversal of 20022221111120 is 2111112222002.

It can be written as a sum of positive squares in 2 ways, for example, as 14137870721296 + 5884350389824 = 3760036^2 + 2425768^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125138881865 + ... + 125138882024.

It is an arithmetic number, because the mean of its divisors is an integer number (2327583204177).

Almost surely, 2^{20022221111120} is an apocalyptic number.

20022221111120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022221111120 is an abundant number, since it is smaller than the sum of its proper divisors (26529442972420).

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

20022221111120 is a wasteful number, since it uses less digits than its factorization.

20022221111120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250277763902 (or 250277763896 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20022221111120 its reverse (2111112222002), we get a palindrome (22133333333122).

The spelling of 20022221111120 in words is "twenty trillion, twenty-two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty".