13121211221030 has 16 divisors (see below), whose sum is σ = 25765287488784. Its totient is φ = 4771349534880.

The previous prime is 13121211221029. The next prime is 13121211221047. The reversal of 13121211221030 is 3012211212131.

It is a junction number, because it is equal to n+sod(n) for n = 13121211220993 and 13121211221011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59641869077 + ... + 59641869296.

It is an arithmetic number, because the mean of its divisors is an integer number (1610330468049).

Almost surely, 2^{13121211221030} is an apocalyptic number.

13121211221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121211221030 is a deficient number, since it is larger than the sum of its proper divisors (12644076267754).

13121211221030 is a wasteful number, since it uses less digits than its factorization.

13121211221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119283738391.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13121211221030 its reverse (3012211212131), we get a palindrome (16133422433161).

The spelling of 13121211221030 in words is "thirteen trillion, one hundred twenty-one billion, two hundred eleven million, two hundred twenty-one thousand, thirty".