400002182022 has 8 divisors (see below), whose sum is σ = 800004364056. Its totient is φ = 133334060672.

The previous prime is 400002182009. The next prime is 400002182029. The reversal of 400002182022 is 220281200004.

It is a happy number.

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

400002182022 is an admirable number.

It is a super-2 number, since 2×400002182022² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400002182022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400002182029) 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, 33333515163 + ... + 33333515174.

It is an arithmetic number, because the mean of its divisors is an integer number (100000545507).

Almost surely, 2^400002182022 is an apocalyptic number.

400002182022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

400002182022 is a wasteful number, since it uses less digits than its factorization.

400002182022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66667030342.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 400002182022 its reverse (220281200004), we get a palindrome (620283382026).

The spelling of 400002182022 in words is "four hundred billion, two million, one hundred eighty-two thousand, twenty-two".