20120111201110 has 32 divisors (see below), whose sum is σ = 36251926941312. Its totient is φ = 8040108263040.

The previous prime is 20120111201083. The next prime is 20120111201143. The reversal of 20120111201110 is 1110211102102.

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 15 ways as a sum of consecutive naturals, for example, 53020867 + ... + 53398993.

It is an arithmetic number, because the mean of its divisors is an integer number (1132872716916).

Almost surely, 2^{20120111201110} is an apocalyptic number.

20120111201110 is a deficient number, since it is larger than the sum of its proper divisors (16131815740202).

20120111201110 is a wasteful number, since it uses less digits than its factorization.

20120111201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383368.

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

Adding to 20120111201110 its reverse (1110211102102), we get a palindrome (21230322303212).

The spelling of 20120111201110 in words is "twenty trillion, one hundred twenty billion, one hundred eleven million, two hundred one thousand, one hundred ten".