20010010010220 has 240 divisors, whose sum is σ = 64950027357600. Its totient is φ = 5150945157120.

The previous prime is 20010010010213. The next prime is 20010010010297. The reversal of 20010010010220 is 2201001001002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 243268300 + ... + 243350540.

It is an arithmetic number, because the mean of its divisors is an integer number (270625113990).

Almost surely, 2^{20010010010220} is an apocalyptic number.

20010010010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010010010220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32475013678800).

20010010010220 is an abundant number, since it is smaller than the sum of its proper divisors (44940017347380).

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

20010010010220 is a wasteful number, since it uses less digits than its factorization.

20010010010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87470 (or 87459 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20010010010220 its reverse (2201001001002), we get a palindrome (22211011011222).

The spelling of 20010010010220 in words is "twenty trillion, ten billion, ten million, ten thousand, two hundred twenty".