420400102332522 has 64 divisors (see below), whose sum is σ = 984652410518784. Its totient is φ = 118454425297920.

The previous prime is 420400102332479. The next prime is 420400102332547. The reversal of 420400102332522 is 225233201004024.

It is a self number, because there is not a number n which added to its sum of digits gives 420400102332522.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4284326854 + ... + 4284424977.

It is an arithmetic number, because the mean of its divisors is an integer number (15385193914356).

Almost surely, 2^{420400102332522} is an apocalyptic number.

420400102332522 is an abundant number, since it is smaller than the sum of its proper divisors (564252308186262).

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

420400102332522 is a wasteful number, since it uses less digits than its factorization.

420400102332522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8568751903.

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 420400102332522 its reverse (225233201004024), we get a palindrome (645633303336546).

The spelling of 420400102332522 in words is "four hundred twenty trillion, four hundred billion, one hundred two million, three hundred thirty-two thousand, five hundred twenty-two".