20202020202 has 128 divisors (see below), whose sum is σ = 51582924288. Its totient is φ = 5132160000.

The previous prime is 20202020197. The next prime is 20202020203.

20202020202 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20202020202² (a number of 21 digits) contains 22 as substring.

20202020202 is an undulating number in base 10.

20202020202 is a modest number, since divided by 2020202 gives 202 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20202020203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2035452 + ... + 2045352.

It is an arithmetic number, because the mean of its divisors is an integer number (402991596).

Almost surely, 2^20202020202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202020202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25791462144).

20202020202 is an abundant number, since it is smaller than the sum of its proper divisors (31380904086).

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

20202020202 is a wasteful number, since it uses less digits than its factorization.

20202020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10064.

The product of its (nonzero) digits is 64, while the sum is 12.

It can be divided in two parts, 202020 and 20202, that added together give a palindrome (222222).

The spelling of 20202020202 in words is "twenty billion, two hundred two million, twenty thousand, two hundred two".