421320022 has 16 divisors (see below), whose sum is σ = 665648640. Its totient is φ = 199450728.

The previous prime is 421320017. The next prime is 421320071. The reversal of 421320022 is 220023124.

It is a junction number, because it is equal to n+sod(n) for n = 421319978 and 421320005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103143 + ... + 107149.

It is an arithmetic number, because the mean of its divisors is an integer number (41603040).

Almost surely, 2^421320022 is an apocalyptic number.

421320022 is a deficient number, since it is larger than the sum of its proper divisors (244328618).

421320022 is a wasteful number, since it uses less digits than its factorization.

421320022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 421320022 is about 20526.0815062203. The cubic root of 421320022 is about 749.6709798302.

Adding to 421320022 its reverse (220023124), we get a palindrome (641343146).

The spelling of 421320022 in words is "four hundred twenty-one million, three hundred twenty thousand, twenty-two".