2111021100111 has 32 divisors (see below), whose sum is σ = 3543974770176. Its totient is φ = 1085776560000.

The previous prime is 2111021100049. The next prime is 2111021100113. The reversal of 2111021100111 is 1110011201112.

It is not a de Polignac number, because 2111021100111 - 2⁷ = 2111021099983 is a prime.

It is a super-2 number, since 2×2111021100111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111021100113) 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, 45217360 + ... + 45264021.

It is an arithmetic number, because the mean of its divisors is an integer number (110749211568).

Almost surely, 2^{2111021100111} is an apocalyptic number.

2111021100111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2111021100111 is a deficient number, since it is larger than the sum of its proper divisors (1432953670065).

2111021100111 is a wasteful number, since it uses less digits than its factorization.

2111021100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90481503.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 2111021100111 its reverse (1110011201112), we get a palindrome (3221032301223).

The spelling of 2111021100111 in words is "two trillion, one hundred eleven billion, twenty-one million, one hundred thousand, one hundred eleven".