20221120201020 has 48 divisors (see below), whose sum is σ = 56662062589440. Its totient is φ = 5388210527296.

The previous prime is 20221120200973. The next prime is 20221120201109. The reversal of 20221120201020 is 2010202112202.

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 15 ways as a sum of consecutive naturals, for example, 127676232 + ... + 127834511.

It is an arithmetic number, because the mean of its divisors is an integer number (1180459637280).

Almost surely, 2^{20221120201020} is an apocalyptic number.

20221120201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221120201020 is an abundant number, since it is smaller than the sum of its proper divisors (36440942388420).

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

20221120201020 is a wasteful number, since it uses less digits than its factorization.

20221120201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255512074 (or 255512072 counting only the distinct ones).

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

Adding to 20221120201020 its reverse (2010202112202), we get a palindrome (22231322313222).

The spelling of 20221120201020 in words is "twenty trillion, two hundred twenty-one billion, one hundred twenty million, two hundred one thousand, twenty".