402101223425 has 48 divisors (see below), whose sum is σ = 545677128000. Its totient is φ = 291501312000.

The previous prime is 402101223379. The next prime is 402101223427. The reversal of 402101223425 is 524322101204.

It is not a de Polignac number, because 402101223425 - 2⁶ = 402101223361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 402101223394 and 402101223403.

It is not an unprimeable number, because it can be changed into a prime (402101223427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186762149 + ... + 186764301.

It is an arithmetic number, because the mean of its divisors is an integer number (11368273500).

Almost surely, 2^402101223425 is an apocalyptic number.

It is an amenable number.

402101223425 is a deficient number, since it is larger than the sum of its proper divisors (143575904575).

402101223425 is a wasteful number, since it uses less digits than its factorization.

402101223425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4034 (or 4029 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 402101223425 its reverse (524322101204), we get a palindrome (926423324629).

It can be divided in two parts, 402101 and 223425, that added together give a palindrome (625526).

The spelling of 402101223425 in words is "four hundred two billion, one hundred one million, two hundred twenty-three thousand, four hundred twenty-five".