200120210102020 has 24 divisors (see below), whose sum is σ = 452579552077464. Its totient is φ = 73890539114496.

The previous prime is 200120210101921. The next prime is 200120210102027. The reversal of 200120210102020 is 20201012021002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3151391846656 + 196968818255364 = 1775216^2 + 14034558^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (200120210102027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384846557629 + ... + 384846558148.

It is an arithmetic number, because the mean of its divisors is an integer number (18857481336561).

Almost surely, 2^{200120210102020} is an apocalyptic number.

200120210102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120210102020 is an abundant number, since it is smaller than the sum of its proper divisors (252459341975444).

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

200120210102020 is a wasteful number, since it uses less digits than its factorization.

200120210102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769693115799 (or 769693115797 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200120210102020 its reverse (20201012021002), we get a palindrome (220321222123022).

The spelling of 200120210102020 in words is "two hundred trillion, one hundred twenty billion, two hundred ten million, one hundred two thousand, twenty".