21111112001110 has 8 divisors (see below), whose sum is σ = 38000001602016. Its totient is φ = 8444444800440.

The previous prime is 21111112001101. The next prime is 21111112001137. The reversal of 21111112001110 is 1110021111112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055555600046 + ... + 1055555600065.

It is an arithmetic number, because the mean of its divisors is an integer number (4750000200252).

Almost surely, 2^{21111112001110} is an apocalyptic number.

21111112001110 is a deficient number, since it is larger than the sum of its proper divisors (16888889600906).

21111112001110 is a wasteful number, since it uses less digits than its factorization.

21111112001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111111200118.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 21111112001110 its reverse (1110021111112), we get a palindrome (22221133112222).

The spelling of 21111112001110 in words is "twenty-one trillion, one hundred eleven billion, one hundred twelve million, one thousand, one hundred ten".