12042231222021 has 64 divisors (see below), whose sum is σ = 21861756112896. Its totient is φ = 5693165452800.

The previous prime is 12042231222019. The next prime is 12042231222067. The reversal of 12042231222021 is 12022213224021.

It is not a de Polignac number, because 12042231222021 - 2¹ = 12042231222019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12042231221982 and 12042231222000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042231122021) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 28026696 + ... + 28453121.

It is an arithmetic number, because the mean of its divisors is an integer number (341589939264).

Almost surely, 2^{12042231222021} is an apocalyptic number.

12042231222021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12042231222021 is a deficient number, since it is larger than the sum of its proper divisors (9819524890875).

12042231222021 is a wasteful number, since it uses less digits than its factorization.

12042231222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56479922.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12042231222021 its reverse (12022213224021), we get a palindrome (24064444446042).

The spelling of 12042231222021 in words is "twelve trillion, forty-two billion, two hundred thirty-one million, two hundred twenty-two thousand, twenty-one".