20001120221022 has 8 divisors (see below), whose sum is σ = 40002240442056. Its totient is φ = 6667040073672.

The previous prime is 20001120220999. The next prime is 20001120221041. The reversal of 20001120221022 is 22012202110002.

It is a sphenic number, since it is the product of 3 distinct primes.

20001120221022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20001120220992 and 20001120221010.

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, 1666760018413 + ... + 1666760018424.

It is an arithmetic number, because the mean of its divisors is an integer number (5000280055257).

Almost surely, 2^{20001120221022} is an apocalyptic number.

20001120221022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20001120221022 is a wasteful number, since it uses less digits than its factorization.

20001120221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3333520036842.

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

Adding to 20001120221022 its reverse (22012202110002), we get a palindrome (42013322331024).

The spelling of 20001120221022 in words is "twenty trillion, one billion, one hundred twenty million, two hundred twenty-one thousand, twenty-two".