4223121401 has 4 divisors (see below), whose sum is σ = 4326124404. Its totient is φ = 4120118400.

The previous prime is 4223121391. The next prime is 4223121443. The reversal of 4223121401 is 1041213224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1892163001 + 2330958400 = 43499^2 + 48280^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223121401 - 2⁶ = 4223121337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4223121601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51501440 + ... + 51501521.

It is an arithmetic number, because the mean of its divisors is an integer number (1081531101).

Almost surely, 2^4223121401 is an apocalyptic number.

4223121401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4223121401 is a deficient number, since it is larger than the sum of its proper divisors (103003003).

4223121401 is a wasteful number, since it uses less digits than its factorization.

4223121401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103003002.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4223121401 is about 64985.5476317619. The cubic root of 4223121401 is about 1616.3839225277.

Adding to 4223121401 its reverse (1041213224), we get a palindrome (5264334625).

The spelling of 4223121401 in words is "four billion, two hundred twenty-three million, one hundred twenty-one thousand, four hundred one".