11321220401212 has 6 divisors (see below), whose sum is σ = 19812135702128. Its totient is φ = 5660610200604.

The previous prime is 11321220401191. The next prime is 11321220401243. The reversal of 11321220401212 is 21210402212311.

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, 1415152550148 + ... + 1415152550155.

Almost surely, 2^{11321220401212} is an apocalyptic number.

It is an amenable number.

11321220401212 is a deficient number, since it is larger than the sum of its proper divisors (8490915300916).

11321220401212 is a wasteful number, since it uses less digits than its factorization.

11321220401212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830305100307 (or 2830305100305 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 11321220401212 its reverse (21210402212311), we get a palindrome (32531622613523).

The spelling of 11321220401212 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty million, four hundred one thousand, two hundred twelve".