420424215222 has 16 divisors (see below), whose sum is σ = 917289196992. Its totient is φ = 127401277320.

The previous prime is 420424215131. The next prime is 420424215227. The reversal of 420424215222 is 222512424024.

It is a self number, because there is not a number n which added to its sum of digits gives 420424215222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420424215227) 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, 3185031868 + ... + 3185031999.

It is an arithmetic number, because the mean of its divisors is an integer number (57330574812).

Almost surely, 2^420424215222 is an apocalyptic number.

420424215222 is an abundant number, since it is smaller than the sum of its proper divisors (496864981770).

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

420424215222 is a wasteful number, since it uses less digits than its factorization.

420424215222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6370063883.

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 420424215222 its reverse (222512424024), we get a palindrome (642936639246).

The spelling of 420424215222 in words is "four hundred twenty billion, four hundred twenty-four million, two hundred fifteen thousand, two hundred twenty-two".