20022023220 has 24 divisors (see below), whose sum is σ = 56061665184. Its totient is φ = 5339206176.

The previous prime is 20022023191. The next prime is 20022023233. The reversal of 20022023220 is 2232022002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20022023220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166850134 + ... + 166850253.

It is an arithmetic number, because the mean of its divisors is an integer number (2335902716).

Almost surely, 2^20022023220 is an apocalyptic number.

20022023220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20022023220 is an abundant number, since it is smaller than the sum of its proper divisors (36039641964).

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

20022023220 is a wasteful number, since it uses less digits than its factorization.

20022023220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333700399 (or 333700397 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 20022023220 its reverse (2232022002), we get a palindrome (22254045222).

The spelling of 20022023220 in words is "twenty billion, twenty-two million, twenty-three thousand, two hundred twenty".