20020210020 has 192 divisors, whose sum is σ = 63794304000. Its totient is φ = 5210929152.

The previous prime is 20020209973. The next prime is 20020210127. The reversal of 20020210020 is 2001202002.

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

It is a junction number, because it is equal to n+sod(n) for n = 20020209984 and 20020210011.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3794104 + ... + 3799376.

It is an arithmetic number, because the mean of its divisors is an integer number (332262000).

Almost surely, 2^20020210020 is an apocalyptic number.

20020210020 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 20020210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31897152000).

20020210020 is an abundant number, since it is smaller than the sum of its proper divisors (43774093980).

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

20020210020 is a wasteful number, since it uses less digits than its factorization.

20020210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5459 (or 5451 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20020210020 its reverse (2001202002), we get a palindrome (22021412022).

The spelling of 20020210020 in words is "twenty billion, twenty million, two hundred ten thousand, twenty".