20122201111110 has 64 divisors (see below), whose sum is σ = 55268241380352. Its totient is φ = 4593033726336.

The previous prime is 20122201111091. The next prime is 20122201111121. The reversal of 20122201111110 is 1111110222102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20122201111110.

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, 65748297 + ... + 66053636.

It is an arithmetic number, because the mean of its divisors is an integer number (863566271568).

Almost surely, 2^{20122201111110} is an apocalyptic number.

20122201111110 is an abundant number, since it is smaller than the sum of its proper divisors (35146040269242).

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

20122201111110 is a wasteful number, since it uses less digits than its factorization.

20122201111110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131802677.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20122201111110 its reverse (1111110222102), we get a palindrome (21233311333212).

The spelling of 20122201111110 in words is "twenty trillion, one hundred twenty-two billion, two hundred one million, one hundred eleven thousand, one hundred ten".