20022442444420 has 24 divisors (see below), whose sum is σ = 45281523682584. Its totient is φ = 7392901825536.

The previous prime is 20022442444409. The next prime is 20022442444429. The reversal of 20022442444420 is 2444424422002.

It can be written as a sum of positive squares in 4 ways, for example, as 750201964164 + 19272240480256 = 866142^2 + 4390016^2 .

It is a super-2 number, since 2×20022442444420² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20022442444429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38504696749 + ... + 38504697268.

It is an arithmetic number, because the mean of its divisors is an integer number (1886730153441).

Almost surely, 2^{20022442444420} is an apocalyptic number.

20022442444420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022442444420 is an abundant number, since it is smaller than the sum of its proper divisors (25259081238164).

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

20022442444420 is a wasteful number, since it uses less digits than its factorization.

20022442444420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77009394039 (or 77009394037 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 20022442444420 its reverse (2444424422002), we get a palindrome (22466866866422).

The spelling of 20022442444420 in words is "twenty trillion, twenty-two billion, four hundred forty-two million, four hundred forty-four thousand, four hundred twenty".