112221020122020 has 72 divisors (see below), whose sum is σ = 340408915512120. Its totient is φ = 29925152225280.

The previous prime is 112221020121997. The next prime is 112221020122021. The reversal of 112221020122020 is 20221020122211.

It is a happy number.

112221020122020 is a `hidden beast` number, since 1 + 1 + 2 + 221 + 0 + 201 + 220 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 32251926930084 + 79969093191936 = 5679078^2 + 8942544^2 .

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 = 112221020121984 and 112221020122002.

It is not an unprimeable number, because it can be changed into a prime (112221020122021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7284660 + ... + 16658580.

It is an arithmetic number, because the mean of its divisors is an integer number (4727901604335).

Almost surely, 2^{112221020122020} is an apocalyptic number.

112221020122020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112221020122020 is an abundant number, since it is smaller than the sum of its proper divisors (228187895390100).

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

112221020122020 is a wasteful number, since it uses less digits than its factorization.

112221020122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9440445 (or 9440440 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112221020122020 its reverse (20221020122211), we get a palindrome (132442040244231).

The spelling of 112221020122020 in words is "one hundred twelve trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, twenty".