20202220201020 has 192 divisors, whose sum is σ = 66459703080960. Its totient is φ = 4520484864000.

The previous prime is 20202220200893. The next prime is 20202220201057. The reversal of 20202220201020 is 2010202220202.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 150245820 + ... + 150380220.

It is an arithmetic number, because the mean of its divisors is an integer number (346144286880).

Almost surely, 2^{20202220201020} is an apocalyptic number.

20202220201020 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 20202220201020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33229851540480).

20202220201020 is an abundant number, since it is smaller than the sum of its proper divisors (46257482879940).

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

20202220201020 is a wasteful number, since it uses less digits than its factorization.

20202220201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151956 (or 151954 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 20202220201020 its reverse (2010202220202), we get a palindrome (22212422421222).

The spelling of 20202220201020 in words is "twenty trillion, two hundred two billion, two hundred twenty million, two hundred one thousand, twenty".