20001010222220 has 48 divisors (see below), whose sum is σ = 42104403887616. Its totient is φ = 7980924000000.

The previous prime is 20001010222213. The next prime is 20001010222229. The reversal of 20001010222220 is 2222201010002.

It is a junction number, because it is equal to n+sod(n) for n = 20001010222195 and 20001010222204.

It is not an unprimeable number, because it can be changed into a prime (20001010222229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163210970 + ... + 163333470.

It is an arithmetic number, because the mean of its divisors is an integer number (877175080992).

Almost surely, 2^{20001010222220} is an apocalyptic number.

20001010222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001010222220 is an abundant number, since it is smaller than the sum of its proper divisors (22103393665396).

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

20001010222220 is a wasteful number, since it uses less digits than its factorization.

20001010222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142322 (or 142320 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20001010222220 its reverse (2222201010002), we get a palindrome (22223211232222).

The spelling of 20001010222220 in words is "twenty trillion, one billion, ten million, two hundred twenty-two thousand, two hundred twenty".