112221011212020 has 72 divisors (see below), whose sum is σ = 340638011289576. Its totient is φ = 29905007185152.

The previous prime is 112221011212003. The next prime is 112221011212043. The reversal of 112221011212020 is 20212110122211.

It can be written as a sum of positive squares in 4 ways, for example, as 71491827520656 + 40729183691364 = 8455284^2 + 6381942^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112221011211984 and 112221011212002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 214277367 + ... + 214800446.

It is an arithmetic number, because the mean of its divisors is an integer number (4731083490133).

Almost surely, 2^{112221011212020} is an apocalyptic number.

112221011212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112221011212020 is an abundant number, since it is smaller than the sum of its proper divisors (228417000077556).

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

112221011212020 is a wasteful number, since it uses less digits than its factorization.

112221011212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429079281 (or 429079276 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 112221011212020 its reverse (20212110122211), we get a palindrome (132433121334231).

The spelling of 112221011212020 in words is "one hundred twelve trillion, two hundred twenty-one billion, eleven million, two hundred twelve thousand, twenty".