13123012221332 has 24 divisors (see below), whose sum is σ = 24971945596416. Its totient is φ = 5997971229408.

The previous prime is 13123012221331. The next prime is 13123012221343. The reversal of 13123012221332 is 23312221032131.

It is a super-2 number, since 2×13123012221332² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123012221331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225070468 + ... + 1225081179.

It is an arithmetic number, because the mean of its divisors is an integer number (1040497733184).

Almost surely, 2^{13123012221332} is an apocalyptic number.

It is an amenable number.

13123012221332 is a deficient number, since it is larger than the sum of its proper divisors (11848933375084).

13123012221332 is a wasteful number, since it uses less digits than its factorization.

13123012221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450151767 (or 2450151765 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13123012221332 its reverse (23312221032131), we get a palindrome (36435233253463).

The spelling of 13123012221332 in words is "thirteen trillion, one hundred twenty-three billion, twelve million, two hundred twenty-one thousand, three hundred thirty-two".