13423122221012 has 24 divisors (see below), whose sum is σ = 27057632200704. Its totient is φ = 5707469289312.

The previous prime is 13423122221009. The next prime is 13423122221083. The reversal of 13423122221012 is 21012222132431.

It is a super-2 number, since 2×13423122221012² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1887387083 + ... + 1887394194.

It is an arithmetic number, because the mean of its divisors is an integer number (1127401341696).

Almost surely, 2^{13423122221012} is an apocalyptic number.

It is an amenable number.

13423122221012 is an abundant number, since it is smaller than the sum of its proper divisors (13634509979692).

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

13423122221012 is a wasteful number, since it uses less digits than its factorization.

13423122221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3774781415 (or 3774781413 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 13423122221012 its reverse (21012222132431), we get a palindrome (34435344353443).

The spelling of 13423122221012 in words is "thirteen trillion, four hundred twenty-three billion, one hundred twenty-two million, two hundred twenty-one thousand, twelve".