1213321241110 has 64 divisors (see below), whose sum is σ = 2508320390400. Its totient is φ = 417919132800.

The previous prime is 1213321241081. The next prime is 1213321241113. The reversal of 1213321241110 is 111421233121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213321241113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13978545 + ... + 14065075.

It is an arithmetic number, because the mean of its divisors is an integer number (39192506100).

Almost surely, 2^{1213321241110} is an apocalyptic number.

1213321241110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213321241110 is an abundant number, since it is smaller than the sum of its proper divisors (1294999149290).

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

1213321241110 is a wasteful number, since it uses less digits than its factorization.

1213321241110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93277.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1213321241110 its reverse (111421233121), we get a palindrome (1324742474231).

The spelling of 1213321241110 in words is "one trillion, two hundred thirteen billion, three hundred twenty-one million, two hundred forty-one thousand, one hundred ten".