2021002111011 has 32 divisors (see below), whose sum is σ = 2916210350592. Its totient is φ = 1237594740480.

The previous prime is 2021002110961. The next prime is 2021002111031. The reversal of 2021002111011 is 1101112001202.

It is not a de Polignac number, because 2021002111011 - 2³⁵ = 1986642372643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021002111031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8018436 + ... + 8266638.

It is an arithmetic number, because the mean of its divisors is an integer number (91131573456).

Almost surely, 2^{2021002111011} is an apocalyptic number.

2021002111011 is a deficient number, since it is larger than the sum of its proper divisors (895208239581).

2021002111011 is a wasteful number, since it uses less digits than its factorization.

2021002111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249243.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2021002111011 its reverse (1101112001202), we get a palindrome (3122114112213).

The spelling of 2021002111011 in words is "two trillion, twenty-one billion, two million, one hundred eleven thousand, eleven".