2000021120001 has 24 divisors (see below), whose sum is σ = 2919093395400. Its totient is φ = 1319424638976.

The previous prime is 2000021119981. The next prime is 2000021120003. The reversal of 2000021120001 is 1000211200002.

It can be written as a sum of positive squares in 4 ways, for example, as 6774113025 + 1993247006976 = 82305^2 + 1411824^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2000021120001 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2000021120003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6527821 + ... + 6827333.

It is an arithmetic number, because the mean of its divisors is an integer number (121628891475).

Almost surely, 2^{2000021120001} is an apocalyptic number.

It is an amenable number.

2000021120001 is a deficient number, since it is larger than the sum of its proper divisors (919072275399).

2000021120001 is a wasteful number, since it uses less digits than its factorization.

2000021120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307265 (or 307262 counting only the distinct ones).

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

Adding to 2000021120001 its reverse (1000211200002), we get a palindrome (3000232320003).

The spelling of 2000021120001 in words is "two trillion, twenty-one million, one hundred twenty thousand, one".