420022012 has 6 divisors (see below), whose sum is σ = 735038528. Its totient is φ = 210011004.

The previous prime is 420021991. The next prime is 420022019. The reversal of 420022012 is 210220024.

It is a junction number, because it is equal to n+sod(n) for n = 420021983 and 420022001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420022019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52502748 + ... + 52502755.

Almost surely, 2^420022012 is an apocalyptic number.

It is an amenable number.

420022012 is a deficient number, since it is larger than the sum of its proper divisors (315016516).

420022012 is a wasteful number, since it uses less digits than its factorization.

420022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105005507 (or 105005505 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 420022012 is about 20494.4385626931. The cubic root of 420022012 is about 748.9003214345.

Adding to 420022012 its reverse (210220024), we get a palindrome (630242036).

The spelling of 420022012 in words is "four hundred twenty million, twenty-two thousand, twelve".