421323311120212 has 24 divisors (see below), whose sum is σ = 766014041356200. Its totient is φ = 202524510053376.

The previous prime is 421323311120189. The next prime is 421323311120219. The reversal of 421323311120212 is 212021113323124.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 65311547381136 + 356011763739076 = 8081556^2 + 18868274^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421323311120219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7794173637 + ... + 7794227692.

It is an arithmetic number, because the mean of its divisors is an integer number (31917251723175).

Almost surely, 2^{421323311120212} is an apocalyptic number.

It is an amenable number.

421323311120212 is a deficient number, since it is larger than the sum of its proper divisors (344690730235988).

421323311120212 is a wasteful number, since it uses less digits than its factorization.

421323311120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15588401595 (or 15588401593 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 421323311120212 its reverse (212021113323124), we get a palindrome (633344424443336).

The spelling of 421323311120212 in words is "four hundred twenty-one trillion, three hundred twenty-three billion, three hundred eleven million, one hundred twenty thousand, two hundred twelve".