20011112120110 has 32 divisors (see below), whose sum is σ = 37183438271232. Its totient is φ = 7745924259840.

The previous prime is 20011112120059. The next prime is 20011112120147. The reversal of 20011112120110 is 1102121111002.

It is a happy number.

It is a super-2 number, since 2×20011112120110² (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, 6463662 + ... + 9044398.

It is an arithmetic number, because the mean of its divisors is an integer number (1161982445976).

Almost surely, 2^{20011112120110} is an apocalyptic number.

20011112120110 is a deficient number, since it is larger than the sum of its proper divisors (17172326151122).

20011112120110 is a wasteful number, since it uses less digits than its factorization.

20011112120110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2605788.

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

Adding to 20011112120110 its reverse (1102121111002), we get a palindrome (21113233231112).

The spelling of 20011112120110 in words is "twenty trillion, eleven billion, one hundred twelve million, one hundred twenty thousand, one hundred ten".