2021102112011 has 8 divisors (see below), whose sum is σ = 2129609804880. Its totient is φ = 1912807808928.

The previous prime is 2021102111981. The next prime is 2021102112017. The reversal of 2021102112011 is 1102112011202.

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

It is a cyclic number.

It is not a de Polignac number, because 2021102112011 - 2⁶ = 2021102111947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021102112017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53327996 + ... + 53365881.

It is an arithmetic number, because the mean of its divisors is an integer number (266201225610).

Almost surely, 2^{2021102112011} is an apocalyptic number.

2021102112011 is a deficient number, since it is larger than the sum of its proper divisors (108507692869).

2021102112011 is a wasteful number, since it uses less digits than its factorization.

2021102112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106694893.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 2021102112011 its reverse (1102112011202), we get a palindrome (3123214123213).

It can be divided in two parts, 202 and 1102112011, that multiplied together give a palindrome (222626626222).

The spelling of 2021102112011 in words is "two trillion, twenty-one billion, one hundred two million, one hundred twelve thousand, eleven".