20201222203020 has 144 divisors (see below), whose sum is σ = 63556279795008. Its totient is φ = 5189502988800.

The previous prime is 20201222203013. The next prime is 20201222203027. The reversal of 20201222203020 is 2030222210202.

20201222203020 is a `hidden beast` number, since 2 + 0 + 20 + 122 + 220 + 302 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (20201222203013) and next prime (20201222203027).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20201222202984 and 20201222203002.

It is not an unprimeable number, because it can be changed into a prime (20201222203027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14343264 + ... + 15688583.

It is an arithmetic number, because the mean of its divisors is an integer number (441363054132).

Almost surely, 2^{20201222203020} is an apocalyptic number.

20201222203020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20201222203020 is an abundant number, since it is smaller than the sum of its proper divisors (43355057591988).

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

20201222203020 is a wasteful number, since it uses less digits than its factorization.

20201222203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30032000 (or 30031995 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 20201222203020 its reverse (2030222210202), we get a palindrome (22231444413222).

The spelling of 20201222203020 in words is "twenty trillion, two hundred one billion, two hundred twenty-two million, two hundred three thousand, twenty".