402201122424 has 64 divisors (see below), whose sum is σ = 1011164860800. Its totient is φ = 133313545344.

The previous prime is 402201122423. The next prime is 402201122437. The reversal of 402201122424 is 424221102204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 402201122394 and 402201122403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402201122423) 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 15 ways as a sum of consecutive naturals, for example, 4460862 + ... + 4550130.

It is an arithmetic number, because the mean of its divisors is an integer number (15799450950).

Almost surely, 2^402201122424 is an apocalyptic number.

It is an amenable number.

402201122424 is an abundant number, since it is smaller than the sum of its proper divisors (608963738376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402201122424 is a wasteful number, since it uses less digits than its factorization.

402201122424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90332 (or 90328 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 402201122424 its reverse (424221102204), we get a palindrome (826422224628).

The spelling of 402201122424 in words is "four hundred two billion, two hundred one million, one hundred twenty-two thousand, four hundred twenty-four".