20200200121000 has 32 divisors (see below), whose sum is σ = 47268468285480. Its totient is φ = 8080080048000.

The previous prime is 20200200120953. The next prime is 20200200121009. The reversal of 20200200121000 is 12100200202.

It can be written as a sum of positive squares in 4 ways, for example, as 13084526500516 + 7115673620484 = 3617254^2 + 2667522^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20200200121009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10100099061 + ... + 10100101060.

Almost surely, 2^{20200200121000} is an apocalyptic number.

20200200121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20200200121000 is an abundant number, since it is smaller than the sum of its proper divisors (27068268164480).

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

20200200121000 is a wasteful number, since it uses less digits than its factorization.

20200200121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20200200142 (or 20200200128 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20200200121000 its reverse (12100200202), we get a palindrome (20212300321202).

The spelling of 20200200121000 in words is "twenty trillion, two hundred billion, two hundred million, one hundred twenty-one thousand".