20021110001112 has 64 divisors (see below), whose sum is σ = 54918651836160. Its totient is φ = 6031933635200.

The previous prime is 20021110001077. The next prime is 20021110001149. The reversal of 20021110001112 is 21110001112002.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 219137964 + ... + 219229307.

It is an arithmetic number, because the mean of its divisors is an integer number (858103934940).

Almost surely, 2^{20021110001112} is an apocalyptic number.

20021110001112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20021110001112 is an abundant number, since it is smaller than the sum of its proper divisors (34897541835048).

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

20021110001112 is a wasteful number, since it uses less digits than its factorization.

20021110001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438367464 (or 438367460 counting only the distinct ones).

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

Adding to 20021110001112 its reverse (21110001112002), we get a palindrome (41131111113114).

The spelling of 20021110001112 in words is "twenty trillion, twenty-one billion, one hundred ten million, one thousand, one hundred twelve".