4000012233421 has 8 divisors (see below), whose sum is σ = 4129089228288. Its totient is φ = 3870938010000.

The previous prime is 4000012233409. The next prime is 4000012233433. The reversal of 4000012233421 is 1243322100004.

It is an interprime number because it is at equal distance from previous prime (4000012233409) and next prime (4000012233433).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4000012233421 - 2⁵ = 4000012233389 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000012233392 and 4000012233401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000012233821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2469471 + ... + 3754771.

It is an arithmetic number, because the mean of its divisors is an integer number (516136153536).

Almost surely, 2^{4000012233421} is an apocalyptic number.

It is an amenable number.

4000012233421 is a deficient number, since it is larger than the sum of its proper divisors (129076994867).

4000012233421 is a wasteful number, since it uses less digits than its factorization.

4000012233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385723.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 4000012233421 its reverse (1243322100004), we get a palindrome (5243334333425).

The spelling of 4000012233421 in words is "four trillion, twelve million, two hundred thirty-three thousand, four hundred twenty-one".