40421112212 has 12 divisors (see below), whose sum is σ = 76178250036. Its totient is φ = 18655897920.

The previous prime is 40421112197. The next prime is 40421112217. The reversal of 40421112212 is 21221112404.

It can be written as a sum of positive squares in 2 ways, for example, as 2331344656 + 38089767556 = 48284^2 + 195166^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40421112217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388664489 + ... + 388664592.

It is an arithmetic number, because the mean of its divisors is an integer number (6348187503).

Almost surely, 2^40421112212 is an apocalyptic number.

It is an amenable number.

40421112212 is a deficient number, since it is larger than the sum of its proper divisors (35757137824).

40421112212 is a wasteful number, since it uses less digits than its factorization.

40421112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 777329098 (or 777329096 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 40421112212 its reverse (21221112404), we get a palindrome (61642224616).

The spelling of 40421112212 in words is "forty billion, four hundred twenty-one million, one hundred twelve thousand, two hundred twelve".