420222424042 has 4 divisors (see below), whose sum is σ = 630333636066. Its totient is φ = 210111212020.

The previous prime is 420222423997. The next prime is 420222424067. The reversal of 420222424042 is 240424222024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 404876417401 + 15346006641 = 636299^2 + 123879^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 420222424042.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105055606009 + ... + 105055606012.

Almost surely, 2^420222424042 is an apocalyptic number.

420222424042 is a deficient number, since it is larger than the sum of its proper divisors (210111212024).

420222424042 is a wasteful number, since it uses less digits than its factorization.

420222424042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210111212023.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 420222424042 its reverse (240424222024), we get a palindrome (660646646066).

The spelling of 420222424042 in words is "four hundred twenty billion, two hundred twenty-two million, four hundred twenty-four thousand, forty-two".