421324220001 has 16 divisors (see below), whose sum is σ = 579906375680. Its totient is φ = 271813041360.

The previous prime is 421324219963. The next prime is 421324220003. The reversal of 421324220001 is 100022423124.

It is not a de Polignac number, because 421324220001 - 2⁶ = 421324219937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 421324220001.

It is not an unprimeable number, because it can be changed into a prime (421324220003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3808596 + ... + 3917658.

It is an arithmetic number, because the mean of its divisors is an integer number (36244148480).

Almost surely, 2^421324220001 is an apocalyptic number.

It is an amenable number.

421324220001 is a deficient number, since it is larger than the sum of its proper divisors (158582155679).

421324220001 is a wasteful number, since it uses less digits than its factorization.

421324220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150636.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 421324220001 its reverse (100022423124), we get a palindrome (521346643125).

The spelling of 421324220001 in words is "four hundred twenty-one billion, three hundred twenty-four million, two hundred twenty thousand, one".