20001010220 has 24 divisors (see below), whose sum is σ = 43828301664. Its totient is φ = 7652560256.

The previous prime is 20001010219. The next prime is 20001010273. The reversal of 20001010220 is 2201010002.

It is a junction number, because it is equal to n+sod(n) for n = 20001010198 and 20001010207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21739769 + ... + 21740688.

It is an arithmetic number, because the mean of its divisors is an integer number (1826179236).

Almost surely, 2^20001010220 is an apocalyptic number.

20001010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20001010220 is an abundant number, since it is smaller than the sum of its proper divisors (23827291444).

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

20001010220 is a wasteful number, since it uses less digits than its factorization.

20001010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43480489 (or 43480487 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 20001010220 its reverse (2201010002), we get a palindrome (22202020222).

The spelling of 20001010220 in words is "twenty billion, one million, ten thousand, two hundred twenty".