421100144022 has 24 divisors (see below), whose sum is σ = 880409759544. Its totient is φ = 134263813024.

The previous prime is 421100143993. The next prime is 421100144027. The reversal of 421100144022 is 220441001124.

It is a self number, because there is not a number n which added to its sum of digits gives 421100144022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421100144027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66332703 + ... + 66339050.

It is an arithmetic number, because the mean of its divisors is an integer number (36683739981).

Almost surely, 2^421100144022 is an apocalyptic number.

421100144022 is an abundant number, since it is smaller than the sum of its proper divisors (459309615522).

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

421100144022 is a wasteful number, since it uses less digits than its factorization.

421100144022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132671804 (or 132671781 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 421100144022 its reverse (220441001124), we get a palindrome (641541145146).

The spelling of 421100144022 in words is "four hundred twenty-one billion, one hundred million, one hundred forty-four thousand, twenty-two".