402422124021 has 16 divisors (see below), whose sum is σ = 549181469760. Its totient is φ = 261975288960.

The previous prime is 402422124017. The next prime is 402422124059. The reversal of 402422124021 is 120421224204.

It is a happy number.

It is not a de Polignac number, because 402422124021 - 2² = 402422124017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402422123982 and 402422124000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402422126021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109851 + ... + 903831.

It is an arithmetic number, because the mean of its divisors is an integer number (34323841860).

Almost surely, 2^402422124021 is an apocalyptic number.

It is an amenable number.

402422124021 is a deficient number, since it is larger than the sum of its proper divisors (146759345739).

402422124021 is a wasteful number, since it uses less digits than its factorization.

402422124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797956.

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

Adding to 402422124021 its reverse (120421224204), we get a palindrome (522843348225).

The spelling of 402422124021 in words is "four hundred two billion, four hundred twenty-two million, one hundred twenty-four thousand, twenty-one".