112211011121020 has 144 divisors (see below), whose sum is σ = 284428352940480. Its totient is φ = 36421595578368.

The previous prime is 112211011120979. The next prime is 112211011121047. The reversal of 112211011121020 is 20121110112211.

It is a super-2 number, since 2×112211011121020² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112211011120985 and 112211011121003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70422982 + ... + 71998738.

It is an arithmetic number, because the mean of its divisors is an integer number (1975196895420).

Almost surely, 2^{112211011121020} is an apocalyptic number.

112211011121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112211011121020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142214176470240).

112211011121020 is an abundant number, since it is smaller than the sum of its proper divisors (172217341819460).

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

112211011121020 is a wasteful number, since it uses less digits than its factorization.

112211011121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577220 (or 1577199 counting only the distinct ones).

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

Adding to 112211011121020 its reverse (20121110112211), we get a palindrome (132332121233231).

The spelling of 112211011121020 in words is "one hundred twelve trillion, two hundred eleven billion, eleven million, one hundred twenty-one thousand, twenty".