21111120001110 has 32 divisors (see below), whose sum is σ = 51168338386272. Its totient is φ = 5573893068800.

The previous prime is 21111120001109. The next prime is 21111120001159. The reversal of 21111120001110 is 1110002111112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3483680139 + ... + 3483686198.

It is an arithmetic number, because the mean of its divisors is an integer number (1599010574571).

Almost surely, 2^{21111120001110} is an apocalyptic number.

21111120001110 is an abundant number, since it is smaller than the sum of its proper divisors (30057218385162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21111120001110 is a wasteful number, since it uses less digits than its factorization.

21111120001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6967366448.

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

Adding to 21111120001110 its reverse (1110002111112), we get a palindrome (22221122112222).

The spelling of 21111120001110 in words is "twenty-one trillion, one hundred eleven billion, one hundred twenty million, one thousand, one hundred ten".