20111102220112 has 10 divisors (see below), whose sum is σ = 38965260551498. Its totient is φ = 10055551110048.

The previous prime is 20111102220043. The next prime is 20111102220217. The reversal of 20111102220112 is 21102220111102.

It can be written as a sum of positive squares in only one way, i.e., 19291034328336 + 820067891776 = 4392156^2 + 905576^2 .

It is a super-3 number, since 3×20111102220112³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 1256943888757 = 20111102220112 / (2 + 0 + 1 + 1 + 1 + 1 + 0 + 2 + 2 + 2 + 0 + 1 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628471944363 + ... + 628471944394.

Almost surely, 2^{20111102220112} is an apocalyptic number.

It is an amenable number.

20111102220112 is a deficient number, since it is larger than the sum of its proper divisors (18854158331386).

20111102220112 is a wasteful number, since it uses less digits than its factorization.

20111102220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256943888765 (or 1256943888759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20111102220112 its reverse (21102220111102), we get a palindrome (41213322331214).

The spelling of 20111102220112 in words is "twenty trillion, one hundred eleven billion, one hundred two million, two hundred twenty thousand, one hundred twelve".