21111200210110 has 8 divisors (see below), whose sum is σ = 38000160378216. Its totient is φ = 8444480084040.

The previous prime is 21111200210053. The next prime is 21111200210117. The reversal of 21111200210110 is 1101200211112.

It is a happy number.

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

It is a super-2 number, since 2×21111200210110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21111200210117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055560010496 + ... + 1055560010515.

It is an arithmetic number, because the mean of its divisors is an integer number (4750020047277).

Almost surely, 2^{21111200210110} is an apocalyptic number.

21111200210110 is a deficient number, since it is larger than the sum of its proper divisors (16888960168106).

21111200210110 is a wasteful number, since it uses less digits than its factorization.

21111200210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111120021018.

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

Adding to 21111200210110 its reverse (1101200211112), we get a palindrome (22212400421222).

The spelling of 21111200210110 in words is "twenty-one trillion, one hundred eleven billion, two hundred million, two hundred ten thousand, one hundred ten".