4021402422242 has 16 divisors (see below), whose sum is σ = 6271483948800. Its totient is φ = 1931841029520.

The previous prime is 4021402422241. The next prime is 4021402422287. The reversal of 4021402422242 is 2422242041204.

It is a super-2 number, since 2×4021402422242² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4021402422241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233305517 + ... + 233322752.

It is an arithmetic number, because the mean of its divisors is an integer number (391967746800).

Almost surely, 2^{4021402422242} is an apocalyptic number.

4021402422242 is a deficient number, since it is larger than the sum of its proper divisors (2250081526558).

4021402422242 is a wasteful number, since it uses less digits than its factorization.

4021402422242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466628441.

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 4021402422242 its reverse (2422242041204), we get a palindrome (6443644463446).

The spelling of 4021402422242 in words is "four trillion, twenty-one billion, four hundred two million, four hundred twenty-two thousand, two hundred forty-two".