112121001121220 has 48 divisors (see below), whose sum is σ = 289789664441088. Its totient is φ = 35484448705920.

The previous prime is 112121001121219. The next prime is 112121001121223. The reversal of 112121001121220 is 22121100121211.

It is a super-2 number, since 2×112121001121220² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112121001121223) 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, 30802471016 + ... + 30802474655.

It is an arithmetic number, because the mean of its divisors is an integer number (6037284675856).

Almost surely, 2^{112121001121220} is an apocalyptic number.

112121001121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112121001121220 is an abundant number, since it is smaller than the sum of its proper divisors (177668663319868).

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

112121001121220 is a wasteful number, since it uses less digits than its factorization.

112121001121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61604945700 (or 61604945698 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 112121001121220 its reverse (22121100121211), we get a palindrome (134242101242431).

The spelling of 112121001121220 in words is "one hundred twelve trillion, one hundred twenty-one billion, one million, one hundred twenty-one thousand, two hundred twenty".