1213133122110 has 256 divisors, whose sum is σ = 3807278899200. Its totient is φ = 240218970624.

The previous prime is 1213133122109. The next prime is 1213133122111. The reversal of 1213133122110 is 112213313121.

It is an interprime number because it is at equal distance from previous prime (1213133122109) and next prime (1213133122111).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213133122111) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5440801 + ... + 5659379.

It is an arithmetic number, because the mean of its divisors is an integer number (14872183200).

Almost surely, 2^{1213133122110} is an apocalyptic number.

1213133122110 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 1213133122110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1903639449600).

1213133122110 is an abundant number, since it is smaller than the sum of its proper divisors (2594145777090).

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

1213133122110 is a wasteful number, since it uses less digits than its factorization.

1213133122110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218735.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1213133122110 its reverse (112213313121), we get a palindrome (1325346435231).

It can be divided in two parts, 121313 and 3122110, that added together give a palindrome (3243423).

The spelling of 1213133122110 in words is "one trillion, two hundred thirteen billion, one hundred thirty-three million, one hundred twenty-two thousand, one hundred ten".