12402221213331 has 24 divisors (see below), whose sum is σ = 18272011533360. Its totient is φ = 8103890543616.

The previous prime is 12402221213323. The next prime is 12402221213351. The reversal of 12402221213331 is 13331212220421.

12402221213331 is a `hidden beast` number, since 1 + 2 + 402 + 2 + 212 + 13 + 3 + 31 = 666.

It is not a de Polignac number, because 12402221213331 - 2³ = 12402221213323 is a prime.

It is a super-2 number, since 2×12402221213331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12402221213295 and 12402221213304.

It is not an unprimeable number, because it can be changed into a prime (12402221213351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34474390 + ... + 34832283.

It is an arithmetic number, because the mean of its divisors is an integer number (761333813890).

Almost surely, 2^{12402221213331} is an apocalyptic number.

12402221213331 is a deficient number, since it is larger than the sum of its proper divisors (5869790320029).

12402221213331 is a wasteful number, since it uses less digits than its factorization.

12402221213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69307075 (or 69307072 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 12402221213331 its reverse (13331212220421), we get a palindrome (25733433433752).

The spelling of 12402221213331 in words is "twelve trillion, four hundred two billion, two hundred twenty-one million, two hundred thirteen thousand, three hundred thirty-one".