4201123121 has 16 divisors (see below), whose sum is σ = 4723971840. Its totient is φ = 3707014080.

The previous prime is 4201123111. The next prime is 4201123123. The reversal of 4201123121 is 1213211024.

It is a cyclic number.

It is not a de Polignac number, because 4201123121 - 2¹⁸ = 4200860977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4201123121.

It is not an unprimeable number, because it can be changed into a prime (4201123123) 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, 615236 + ... + 622026.

It is an arithmetic number, because the mean of its divisors is an integer number (295248240).

Almost surely, 2^4201123121 is an apocalyptic number.

It is an amenable number.

4201123121 is a deficient number, since it is larger than the sum of its proper divisors (522848719).

4201123121 is a wasteful number, since it uses less digits than its factorization.

4201123121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8896.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 4201123121 is about 64816.0714715108. The cubic root of 4201123121 is about 1613.5724487306.

Adding to 4201123121 its reverse (1213211024), we get a palindrome (5414334145).

The spelling of 4201123121 in words is "four billion, two hundred one million, one hundred twenty-three thousand, one hundred twenty-one".