402201122425 has 24 divisors (see below), whose sum is σ = 510494710176. Its totient is φ = 314175267840.

The previous prime is 402201122423. The next prime is 402201122437. The reversal of 402201122425 is 524221102204.

It is a happy number.

It is not a de Polignac number, because 402201122425 - 2¹ = 402201122423 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402201122425.

It is not an unprimeable number, because it can be changed into a prime (402201122423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3312642 + ... + 3431908.

It is an arithmetic number, because the mean of its divisors is an integer number (21270612924).

Almost surely, 2^402201122425 is an apocalyptic number.

It is an amenable number.

402201122425 is a deficient number, since it is larger than the sum of its proper divisors (108293587751).

402201122425 is a wasteful number, since it uses less digits than its factorization.

402201122425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122457 (or 122452 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 402201122425 its reverse (524221102204), we get a palindrome (926422224629).

The spelling of 402201122425 in words is "four hundred two billion, two hundred one million, one hundred twenty-two thousand, four hundred twenty-five".