400242042222 has 32 divisors (see below), whose sum is σ = 883067235840. Its totient is φ = 119922707520.

The previous prime is 400242042203. The next prime is 400242042259. The reversal of 400242042222 is 222240242004.

It is a junction number, because it is equal to n+sod(n) for n = 400242042192 and 400242042201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34063078 + ... + 34074825.

It is an arithmetic number, because the mean of its divisors is an integer number (27595851120).

Almost surely, 2^400242042222 is an apocalyptic number.

400242042222 is an abundant number, since it is smaller than the sum of its proper divisors (482825193618).

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

400242042222 is a wasteful number, since it uses less digits than its factorization.

400242042222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68138008.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 400242042222 its reverse (222240242004), we get a palindrome (622482284226).

The spelling of 400242042222 in words is "four hundred billion, two hundred forty-two million, forty-two thousand, two hundred twenty-two".