2111110122021 has 32 divisors (see below), whose sum is σ = 2895660472320. Its totient is φ = 1367279049600.

The previous prime is 2111110121977. The next prime is 2111110122029. The reversal of 2111110122021 is 1202210111112.

It is a happy number.

It is not a de Polignac number, because 2111110122021 - 2⁶ = 2111110121957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111110122029) 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, 65950006 + ... + 65982008.

It is an arithmetic number, because the mean of its divisors is an integer number (90489389760).

Almost surely, 2^{2111110122021} is an apocalyptic number.

It is an amenable number.

2111110122021 is a deficient number, since it is larger than the sum of its proper divisors (784550350299).

2111110122021 is a wasteful number, since it uses less digits than its factorization.

2111110122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34297.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111110122021 its reverse (1202210111112), we get a palindrome (3313320233133).

The spelling of 2111110122021 in words is "two trillion, one hundred eleven billion, one hundred ten million, one hundred twenty-two thousand, twenty-one".