226361212521212 has 6 divisors (see below), whose sum is σ = 396132121912128. Its totient is φ = 113180606260604.

The previous prime is 226361212521211. The next prime is 226361212521281. The reversal of 226361212521212 is 212125212163622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226361212521211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28295151565148 + ... + 28295151565155.

It is an arithmetic number, because the mean of its divisors is an integer number (66022020318688).

Almost surely, 2^{226361212521212} is an apocalyptic number.

It is an amenable number.

226361212521212 is a deficient number, since it is larger than the sum of its proper divisors (169770909390916).

226361212521212 is a wasteful number, since it uses less digits than its factorization.

226361212521212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56590303130307 (or 56590303130305 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

Adding to 226361212521212 its reverse (212125212163622), we get a palindrome (438486424684834).

The spelling of 226361212521212 in words is "two hundred twenty-six trillion, three hundred sixty-one billion, two hundred twelve million, five hundred twenty-one thousand, two hundred twelve".