2111120201021 has 24 divisors (see below), whose sum is σ = 2385669749760. Its totient is φ = 1863786340416.

The previous prime is 2111120201011. The next prime is 2111120201023. The reversal of 2111120201021 is 1201020211112.

It is not a de Polignac number, because 2111120201021 - 2¹⁰ = 2111120199997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2111120200987 and 2111120201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111120201023) 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, 41017115 + ... + 41068551.

It is an arithmetic number, because the mean of its divisors is an integer number (99402906240).

Almost surely, 2^{2111120201021} is an apocalyptic number.

It is an amenable number.

2111120201021 is a deficient number, since it is larger than the sum of its proper divisors (274549548739).

2111120201021 is a wasteful number, since it uses less digits than its factorization.

2111120201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62045 (or 62032 counting only the distinct ones).

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

Adding to 2111120201021 its reverse (1201020211112), we get a palindrome (3312140412133).

The spelling of 2111120201021 in words is "two trillion, one hundred eleven billion, one hundred twenty million, two hundred one thousand, twenty-one".