4123023212221 has 8 divisors (see below), whose sum is σ = 4132678739904. Its totient is φ = 4113376199040.

The previous prime is 4123023212183. The next prime is 4123023212261. The reversal of 4123023212221 is 1222123203214.

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 4123023212221 - 2³¹ = 4120875728573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4123023212261) 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, 1158505 + ... + 3096478.

It is an arithmetic number, because the mean of its divisors is an integer number (516584842488).

Almost surely, 2^{4123023212221} is an apocalyptic number.

It is an amenable number.

4123023212221 is a deficient number, since it is larger than the sum of its proper divisors (9655527683).

4123023212221 is a wasteful number, since it uses less digits than its factorization.

4123023212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4257251.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 4123023212221 its reverse (1222123203214), we get a palindrome (5345146415435).

The spelling of 4123023212221 in words is "four trillion, one hundred twenty-three billion, twenty-three million, two hundred twelve thousand, two hundred twenty-one".