112121221202020 has 48 divisors (see below), whose sum is σ = 249320454945408. Its totient is φ = 42207697118720.

The previous prime is 112121221202017. The next prime is 112121221202027. The reversal of 112121221202020 is 20202122121211.

It is not an unprimeable number, because it can be changed into a prime (112121221202027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4893832 + ... + 15754111.

It is an arithmetic number, because the mean of its divisors is an integer number (5194176144696).

Almost surely, 2^{112121221202020} is an apocalyptic number.

112121221202020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112121221202020 is an abundant number, since it is smaller than the sum of its proper divisors (137199233743388).

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

112121221202020 is a wasteful number, since it uses less digits than its factorization.

112121221202020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20663940 (or 20663938 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 112121221202020 its reverse (20202122121211), we get a palindrome (132323343323231).

The spelling of 112121221202020 in words is "one hundred twelve trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred two thousand, twenty".