12213343155402 has 24 divisors (see below), whose sum is σ = 26463059068836. Its totient is φ = 4070988913536.

The previous prime is 12213343155373. The next prime is 12213343155437. The reversal of 12213343155402 is 20455134331221.

12213343155402 is a `hidden beast` number, since 1 + 2 + 2 + 1 + 334 + 315 + 5 + 4 + 0 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12205233972801 + 8109182601 = 3493599^2 + 90051^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9854773 + ... + 11024664.

Almost surely, 2^{12213343155402} is an apocalyptic number.

12213343155402 is an abundant number, since it is smaller than the sum of its proper divisors (14249715913434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12213343155402 is a wasteful number, since it uses less digits than its factorization.

12213343155402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20911942 (or 20911939 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 12213343155402 its reverse (20455134331221), we get a palindrome (32668477486623).

The spelling of 12213343155402 in words is "twelve trillion, two hundred thirteen billion, three hundred forty-three million, one hundred fifty-five thousand, four hundred two".