200120202121020 has 48 divisors (see below), whose sum is σ = 560337189020448. Its totient is φ = 53365327891200.

The previous prime is 200120202121003. The next prime is 200120202121039. The reversal of 200120202121020 is 20121202021002.

200120202121020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 90874002 + ... + 93050118.

It is an arithmetic number, because the mean of its divisors is an integer number (11673691437926).

Almost surely, 2^{200120202121020} is an apocalyptic number.

200120202121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200120202121020 is an abundant number, since it is smaller than the sum of its proper divisors (360216986899428).

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

200120202121020 is a wasteful number, since it uses less digits than its factorization.

200120202121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708830 (or 3708828 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 200120202121020 its reverse (20121202021002), we get a palindrome (220241404142022).

The spelling of 200120202121020 in words is "two hundred trillion, one hundred twenty billion, two hundred two million, one hundred twenty-one thousand, twenty".