421211240202 has 32 divisors (see below), whose sum is σ = 846874483200. Its totient is φ = 139662111600.

The previous prime is 421211240189. The next prime is 421211240227. The reversal of 421211240202 is 202042112124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4793353 + ... + 4880435.

It is an arithmetic number, because the mean of its divisors is an integer number (26464827600).

Almost surely, 2^421211240202 is an apocalyptic number.

421211240202 is an abundant number, since it is smaller than the sum of its proper divisors (425663242998).

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

421211240202 is a wasteful number, since it uses less digits than its factorization.

421211240202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91338.

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

Adding to 421211240202 its reverse (202042112124), we get a palindrome (623253352326).

The spelling of 421211240202 in words is "four hundred twenty-one billion, two hundred eleven million, two hundred forty thousand, two hundred two".