21111200201110 has 64 divisors (see below), whose sum is σ = 38614735368000. Its totient is φ = 8309007475200.

The previous prime is 21111200201107. The next prime is 21111200201149. The reversal of 21111200201110 is 1110200211112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 906398565 + ... + 906421855.

It is an arithmetic number, because the mean of its divisors is an integer number (603355240125).

Almost surely, 2^{21111200201110} is an apocalyptic number.

21111200201110 is a deficient number, since it is larger than the sum of its proper divisors (17503535166890).

21111200201110 is a wasteful number, since it uses less digits than its factorization.

21111200201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29137.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21111200201110 its reverse (1110200211112), we get a palindrome (22221400412222).

The spelling of 21111200201110 in words is "twenty-one trillion, one hundred eleven billion, two hundred million, two hundred one thousand, one hundred ten".