21211211001110 has 192 divisors, whose sum is σ = 43212294611136. Its totient is φ = 7449273216000.

The previous prime is 21211211001107. The next prime is 21211211001181. The reversal of 21211211001110 is 1110011211212.

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 95 ways as a sum of consecutive naturals, for example, 1480912409 + ... + 1480926731.

It is an arithmetic number, because the mean of its divisors is an integer number (225064034433).

Almost surely, 2^{21211211001110} is an apocalyptic number.

21211211001110 is an abundant number, since it is smaller than the sum of its proper divisors (22001083610026).

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

21211211001110 is a wasteful number, since it uses less digits than its factorization.

21211211001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14591 (or 14548 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 21211211001110 its reverse (1110011211212), we get a palindrome (22321222212322).

The spelling of 21211211001110 in words is "twenty-one trillion, two hundred eleven billion, two hundred eleven million, one thousand, one hundred ten".