421600022 has 4 divisors (see below), whose sum is σ = 632400036. Its totient is φ = 210800010.

The previous prime is 421599991. The next prime is 421600033. The reversal of 421600022 is 220006124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105400004 + ... + 105400007.

It is an arithmetic number, because the mean of its divisors is an integer number (158100009).

Almost surely, 2^421600022 is an apocalyptic number.

421600022 is a deficient number, since it is larger than the sum of its proper divisors (210800014).

421600022 is a wasteful number, since it uses less digits than its factorization.

421600022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210800013.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 421600022 is about 20532.9009640625. The cubic root of 421600022 is about 749.8370146577.

Adding to 421600022 its reverse (220006124), we get a palindrome (641606146).

The spelling of 421600022 in words is "four hundred twenty-one million, six hundred thousand, twenty-two".