2000111010021 has 6 divisors (see below), whose sum is σ = 2889049236710. Its totient is φ = 1333407340008.

The previous prime is 2000111010019. The next prime is 2000111010061. The reversal of 2000111010021 is 1200101110002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1135266809121 + 864844200900 = 1065489^2 + 929970^2 .

It is not a de Polignac number, because 2000111010021 - 2¹ = 2000111010019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 222234556669 = 2000111010021 / (2 + 0 + 0 + 0 + 1 + 1 + 1 + 0 + 1 + 0 + 0 + 2 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2000111009985 and 2000111010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000111010061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111117278326 + ... + 111117278343.

Almost surely, 2^{2000111010021} is an apocalyptic number.

It is an amenable number.

2000111010021 is a deficient number, since it is larger than the sum of its proper divisors (888938226689).

2000111010021 is a wasteful number, since it uses less digits than its factorization.

2000111010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222234556675 (or 222234556672 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 2000111010021 its reverse (1200101110002), we get a palindrome (3200212120023).

The spelling of 2000111010021 in words is "two trillion, one hundred eleven million, ten thousand, twenty-one".