2021000111122 has 8 divisors (see below), whose sum is σ = 3036827936700. Its totient is φ = 1008724132224.

The previous prime is 2021000111093. The next prime is 2021000111129. The reversal of 2021000111122 is 2211110001202.

It can be written as a sum of positive squares in 2 ways, for example, as 2015516856721 + 5483254401 = 1419689^2 + 74049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2021000111129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 887960247 + ... + 887962522.

Almost surely, 2^{2021000111122} is an apocalyptic number.

2021000111122 is a deficient number, since it is larger than the sum of its proper divisors (1015827825578).

2021000111122 is a wasteful number, since it uses less digits than its factorization.

2021000111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775923340.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021000111122 its reverse (2211110001202), we get a palindrome (4232110112324).

The spelling of 2021000111122 in words is "two trillion, twenty-one billion, one hundred eleven thousand, one hundred twenty-two".