20011222110110 has 48 divisors (see below), whose sum is σ = 45248515468128. Its totient is φ = 6237264031680.

The previous prime is 20011222110107. The next prime is 20011222110119. The reversal of 20011222110110 is 1101122211002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011222110119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1181291537 + ... + 1181308476.

It is an arithmetic number, because the mean of its divisors is an integer number (942677405586).

Almost surely, 2^{20011222110110} is an apocalyptic number.

20011222110110 is an abundant number, since it is smaller than the sum of its proper divisors (25237293358018).

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

20011222110110 is a wasteful number, since it uses less digits than its factorization.

20011222110110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362600049 (or 2362600038 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20011222110110 its reverse (1101122211002), we get a palindrome (21112344321112).

The spelling of 20011222110110 in words is "twenty trillion, eleven billion, two hundred twenty-two million, one hundred ten thousand, one hundred ten".