220012112021121 has 48 divisors (see below), whose sum is σ = 376679616768000. Its totient is φ = 125710069132368.

The previous prime is 220012112021101. The next prime is 220012112021147. The reversal of 220012112021121 is 121120211210022.

220012112021121 is a `hidden beast` number, since 2 + 200 + 1 + 211 + 20 + 211 + 21 = 666.

It is not a de Polignac number, because 220012112021121 - 2⁶ = 220012112021057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220012112021094 and 220012112021103.

It is not an unprimeable number, because it can be changed into a prime (220012112021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13495960 + ... + 24943238.

It is an arithmetic number, because the mean of its divisors is an integer number (7847492016000).

Almost surely, 2^{220012112021121} is an apocalyptic number.

220012112021121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220012112021121 is a deficient number, since it is larger than the sum of its proper divisors (156667504746879).

220012112021121 is a wasteful number, since it uses less digits than its factorization.

220012112021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11458600 (or 11458588 counting only the distinct ones).

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

Adding to 220012112021121 its reverse (121120211210022), we get a palindrome (341132323231143).

The spelling of 220012112021121 in words is "two hundred twenty trillion, twelve billion, one hundred twelve million, twenty-one thousand, one hundred twenty-one".