20121112110022 has 64 divisors (see below), whose sum is σ = 37658044316160. Its totient is φ = 7833364992000.

The previous prime is 20121112109977. The next prime is 20121112110079. The reversal of 20121112110022 is 22001121112102.

It is a junction number, because it is equal to n+sod(n) for n = 20121112109978 and 20121112110005.

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, 2136221229 + ... + 2136230647.

It is an arithmetic number, because the mean of its divisors is an integer number (588406942440).

Almost surely, 2^{20121112110022} is an apocalyptic number.

20121112110022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20121112110022 is a deficient number, since it is larger than the sum of its proper divisors (17536932206138).

20121112110022 is a wasteful number, since it uses less digits than its factorization.

20121112110022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18637.

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

Adding to 20121112110022 its reverse (22001121112102), we get a palindrome (42122233222124).

The spelling of 20121112110022 in words is "twenty trillion, one hundred twenty-one billion, one hundred twelve million, one hundred ten thousand, twenty-two".