20111120210110 has 32 divisors (see below), whose sum is σ = 36287748814464. Its totient is φ = 8024955840000.

The previous prime is 20111120210053. The next prime is 20111120210123. The reversal of 20111120210110 is 1101202111102.

It is a happy number.

It is a super-2 number, since 2×20111120210110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42437670 + ... + 42908950.

It is an arithmetic number, because the mean of its divisors is an integer number (1133992150452).

Almost surely, 2^{20111120210110} is an apocalyptic number.

20111120210110 is a deficient number, since it is larger than the sum of its proper divisors (16176628604354).

20111120210110 is a wasteful number, since it uses less digits than its factorization.

20111120210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481620.

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

Adding to 20111120210110 its reverse (1101202111102), we get a palindrome (21212322321212).

The spelling of 20111120210110 in words is "twenty trillion, one hundred eleven billion, one hundred twenty million, two hundred ten thousand, one hundred ten".