420443240212 has 6 divisors (see below), whose sum is σ = 735775670378. Its totient is φ = 210221620104.

The previous prime is 420443240201. The next prime is 420443240227. The reversal of 420443240212 is 212042344024.

It can be written as a sum of positive squares in only one way, i.e., 420417372816 + 25867396 = 648396^2 + 5086^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52555405023 + ... + 52555405030.

Almost surely, 2^420443240212 is an apocalyptic number.

It is an amenable number.

420443240212 is a deficient number, since it is larger than the sum of its proper divisors (315332430166).

420443240212 is a wasteful number, since it uses less digits than its factorization.

420443240212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105110810057 (or 105110810055 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 420443240212 its reverse (212042344024), we get a palindrome (632485584236).

The spelling of 420443240212 in words is "four hundred twenty billion, four hundred forty-three million, two hundred forty thousand, two hundred twelve".