13122141220 has 24 divisors (see below), whose sum is σ = 29177467704. Its totient is φ = 4940100096.

The previous prime is 13122141211. The next prime is 13122141229. The reversal of 13122141220 is 2214122131.

It is an interprime number because it is at equal distance from previous prime (13122141211) and next prime (13122141229).

It can be written as a sum of positive squares in 4 ways, for example, as 1452524544 + 11669616676 = 38112^2 + 108026^2 .

It is not an unprimeable number, because it can be changed into a prime (13122141229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19296927 + ... + 19297606.

It is an arithmetic number, because the mean of its divisors is an integer number (1215727821).

Almost surely, 2^13122141220 is an apocalyptic number.

13122141220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13122141220 is an abundant number, since it is smaller than the sum of its proper divisors (16055326484).

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

13122141220 is a wasteful number, since it uses less digits than its factorization.

13122141220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38594559 (or 38594557 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 13122141220 its reverse (2214122131), we get a palindrome (15336263351).

The spelling of 13122141220 in words is "thirteen billion, one hundred twenty-two million, one hundred forty-one thousand, two hundred twenty".