2111021110 has 32 divisors (see below), whose sum is σ = 4147697664. Its totient is φ = 767196000.

The previous prime is 2111021093. The next prime is 2111021113. The reversal of 2111021110 is 111201112.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227665 + ... + 236755.

It is an arithmetic number, because the mean of its divisors is an integer number (129615552).

Almost surely, 2^2111021110 is an apocalyptic number.

2111021110 is a deficient number, since it is larger than the sum of its proper divisors (2036676554).

2111021110 is a wasteful number, since it uses less digits than its factorization.

2111021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11220.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 2111021110 is about 45945.8497581664. The cubic root of 2111021110 is about 1282.8154801993.

Adding to 2111021110 its reverse (111201112), we get a palindrome (2222222222).

It can be divided in two parts, 211102 and 1110, that added together give a palindrome (212212).

The spelling of 2111021110 in words is "two billion, one hundred eleven million, twenty-one thousand, one hundred ten".