421001420340022 has 16 divisors (see below), whose sum is σ = 668649973138272. Its totient is φ = 198118120348800.

The previous prime is 421001420339939. The next prime is 421001420340091. The reversal of 421001420340022 is 220043024100124.

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, 32471647 + ... + 43547797.

It is an arithmetic number, because the mean of its divisors is an integer number (41790623321142).

Almost surely, 2^{421001420340022} is an apocalyptic number.

421001420340022 is a deficient number, since it is larger than the sum of its proper divisors (247648552798250).

421001420340022 is a wasteful number, since it uses less digits than its factorization.

421001420340022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12194103.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 421001420340022 its reverse (220043024100124), we get a palindrome (641044444440146).

The spelling of 421001420340022 in words is "four hundred twenty-one trillion, one billion, four hundred twenty million, three hundred forty thousand, twenty-two".