402223043121 has 4 divisors (see below), whose sum is σ = 536297390832. Its totient is φ = 268148695412.

The previous prime is 402223043111. The next prime is 402223043147. The reversal of 402223043121 is 121340322204.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402223043121 - 2¹³ = 402223034929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402223043091 and 402223043100.

It is not an unprimeable number, because it can be changed into a prime (402223043111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67037173851 + ... + 67037173856.

It is an arithmetic number, because the mean of its divisors is an integer number (134074347708).

Almost surely, 2^402223043121 is an apocalyptic number.

It is an amenable number.

402223043121 is a deficient number, since it is larger than the sum of its proper divisors (134074347711).

402223043121 is a wasteful number, since it uses less digits than its factorization.

402223043121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134074347710.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 402223043121 its reverse (121340322204), we get a palindrome (523563365325).

The spelling of 402223043121 in words is "four hundred two billion, two hundred twenty-three million, forty-three thousand, one hundred twenty-one".