420022042220 has 48 divisors (see below), whose sum is σ = 962969188608. Its totient is φ = 152618324160.

The previous prime is 420022042211. The next prime is 420022042267. The reversal of 420022042220 is 22240220024.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 420022042192 and 420022042201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 442832 + ... + 1017911.

It is an arithmetic number, because the mean of its divisors is an integer number (20061858096).

Almost surely, 2^420022042220 is an apocalyptic number.

It is an amenable number.

420022042220 is an abundant number, since it is smaller than the sum of its proper divisors (542947146388).

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

420022042220 is a wasteful number, since it uses less digits than its factorization.

420022042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462070 (or 1462068 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 420022042220 its reverse (22240220024), we get a palindrome (442262262244).

The spelling of 420022042220 in words is "four hundred twenty billion, twenty-two million, forty-two thousand, two hundred twenty".