20112100221112 has 32 divisors (see below), whose sum is σ = 37767968138880. Its totient is φ = 10040644527840.

The previous prime is 20112100220983. The next prime is 20112100221119. The reversal of 20112100221112 is 21112200121102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112100221119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67641523 + ... + 67938205.

It is an arithmetic number, because the mean of its divisors is an integer number (1180249004340).

Almost surely, 2^{20112100221112} is an apocalyptic number.

It is an amenable number.

20112100221112 is a deficient number, since it is larger than the sum of its proper divisors (17655867917768).

20112100221112 is a wasteful number, since it uses less digits than its factorization.

20112100221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309643 (or 309639 counting only the distinct ones).

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

Adding to 20112100221112 its reverse (21112200121102), we get a palindrome (41224300342214).

The spelling of 20112100221112 in words is "twenty trillion, one hundred twelve billion, one hundred million, two hundred twenty-one thousand, one hundred twelve".