400220320214242 has 8 divisors (see below), whose sum is σ = 654905978532432. Its totient is φ = 181918327370100.

The previous prime is 400220320214213. The next prime is 400220320214249. The reversal of 400220320214242 is 242412023022004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 400220320214242.

It is not an unprimeable number, because it can be changed into a prime (400220320214249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9095916368484 + ... + 9095916368527.

It is an arithmetic number, because the mean of its divisors is an integer number (81863247316554).

Almost surely, 2^{400220320214242} is an apocalyptic number.

400220320214242 is a deficient number, since it is larger than the sum of its proper divisors (254685658318190).

400220320214242 is a wasteful number, since it uses less digits than its factorization.

400220320214242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18191832737024.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 400220320214242 its reverse (242412023022004), we get a palindrome (642632343236246).

The spelling of 400220320214242 in words is "four hundred trillion, two hundred twenty billion, three hundred twenty million, two hundred fourteen thousand, two hundred forty-two".