12021001013434 has 32 divisors (see below), whose sum is σ = 21167851136256. Its totient is φ = 5011797939840.

The previous prime is 12021001013401. The next prime is 12021001013477. The reversal of 12021001013434 is 43431010012021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1275027 + ... + 5066329.

It is an arithmetic number, because the mean of its divisors is an integer number (661495348008).

Almost surely, 2^{12021001013434} is an apocalyptic number.

12021001013434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12021001013434 is a deficient number, since it is larger than the sum of its proper divisors (9146850122822).

12021001013434 is a wasteful number, since it uses less digits than its factorization.

12021001013434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797470.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12021001013434 its reverse (43431010012021), we get a palindrome (55452011025455).

The spelling of 12021001013434 in words is "twelve trillion, twenty-one billion, one million, thirteen thousand, four hundred thirty-four".