12021543221114 has 32 divisors (see below), whose sum is σ = 21965123725056. Its totient is φ = 4816913068800.

The previous prime is 12021543221111. The next prime is 12021543221123. The reversal of 12021543221114 is 41112234512021.

It is a super-2 number, since 2×12021543221114² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12021543221111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167217989 + ... + 167289864.

It is an arithmetic number, because the mean of its divisors is an integer number (686410116408).

Almost surely, 2^{12021543221114} is an apocalyptic number.

12021543221114 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12021543221114 is a deficient number, since it is larger than the sum of its proper divisors (9943580503942).

12021543221114 is a wasteful number, since it uses less digits than its factorization.

12021543221114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334508030.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 12021543221114 its reverse (41112234512021), we get a palindrome (53133777733135).

The spelling of 12021543221114 in words is "twelve trillion, twenty-one billion, five hundred forty-three million, two hundred twenty-one thousand, one hundred fourteen".