2020001121000 has 96 divisors (see below), whose sum is σ = 6827603819400. Its totient is φ = 538666963200.

The previous prime is 2020001120983. The next prime is 2020001121023. The reversal of 2020001121000 is 1211000202.

It can be written as a sum of positive squares in 4 ways, for example, as 65077030404 + 1954924090596 = 255102^2 + 1398186^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112213285 + ... + 112231284.

Almost surely, 2^{2020001121000} is an apocalyptic number.

2020001121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020001121000 is an abundant number, since it is smaller than the sum of its proper divisors (4807602698400).

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

2020001121000 is a wasteful number, since it uses less digits than its factorization.

2020001121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224444596 (or 224444579 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2020001121000 its reverse (1211000202), we get a palindrome (2021212121202).

The spelling of 2020001121000 in words is "two trillion, twenty billion, one million, one hundred twenty-one thousand".