420447745222 has 16 divisors (see below), whose sum is σ = 631314172944. Its totient is φ = 210009780000.

The previous prime is 420447745187. The next prime is 420447745279. The reversal of 420447745222 is 222547744024.

It is a happy number.

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 7 ways as a sum of consecutive naturals, for example, 10201597 + ... + 10242727.

It is an arithmetic number, because the mean of its divisors is an integer number (39457135809).

Almost surely, 2^420447745222 is an apocalyptic number.

420447745222 is a deficient number, since it is larger than the sum of its proper divisors (210866427722).

420447745222 is a wasteful number, since it uses less digits than its factorization.

420447745222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46215.

The product of its (nonzero) digits is 1003520, while the sum is 43.

The spelling of 420447745222 in words is "four hundred twenty billion, four hundred forty-seven million, seven hundred forty-five thousand, two hundred twenty-two".