13223522121390 has 256 divisors, whose sum is σ = 41661962496000. Its totient is φ = 2921744286720.

The previous prime is 13223522121307. The next prime is 13223522121427. The reversal of 13223522121390 is 9312122532231.

13223522121390 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 3 + 52 + 212 + 1 + 390 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7663621 + ... + 9229199.

It is an arithmetic number, because the mean of its divisors is an integer number (162742041000).

Almost surely, 2^{13223522121390} is an apocalyptic number.

13223522121390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13223522121390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20830981248000).

13223522121390 is an abundant number, since it is smaller than the sum of its proper divisors (28438440374610).

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

13223522121390 is a wasteful number, since it uses less digits than its factorization.

13223522121390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565752 (or 1565746 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 13223522121390 in words is "thirteen trillion, two hundred twenty-three billion, five hundred twenty-two million, one hundred twenty-one thousand, three hundred ninety".