20112001021110 has 64 divisors (see below), whose sum is σ = 49977474206400. Its totient is φ = 5173675487232.

The previous prime is 20112001021109. The next prime is 20112001021169. The reversal of 20112001021110 is 1112010021102.

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, 9255699 + ... + 11220158.

It is an arithmetic number, because the mean of its divisors is an integer number (780898034475).

Almost surely, 2^{20112001021110} is an apocalyptic number.

20112001021110 is an abundant number, since it is smaller than the sum of its proper divisors (29865473185290).

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

20112001021110 is a wasteful number, since it uses less digits than its factorization.

20112001021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20477025.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20112001021110 its reverse (1112010021102), we get a palindrome (21224011042212).

The spelling of 20112001021110 in words is "twenty trillion, one hundred twelve billion, one million, twenty-one thousand, one hundred ten".