13221123155054 has 8 divisors (see below), whose sum is σ = 19866909751560. Its totient is φ = 6598819904536.

The previous prime is 13221123154999. The next prime is 13221123155059. The reversal of 13221123155054 is 45055132112231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13221123155054² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221123155059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5870835089 + ... + 5870837340.

It is an arithmetic number, because the mean of its divisors is an integer number (2483363718945).

Almost surely, 2^{13221123155054} is an apocalyptic number.

13221123155054 is a deficient number, since it is larger than the sum of its proper divisors (6645786596506).

13221123155054 is a wasteful number, since it uses less digits than its factorization.

13221123155054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11741672994.

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 13221123155054 its reverse (45055132112231), we get a palindrome (58276255267285).

The spelling of 13221123155054 in words is "thirteen trillion, two hundred twenty-one billion, one hundred twenty-three million, one hundred fifty-five thousand, fifty-four".