13102211221220 has 48 divisors (see below), whose sum is σ = 30714020745408. Its totient is φ = 4653639500160.

The previous prime is 13102211221217. The next prime is 13102211221223. The reversal of 13102211221220 is 2212211220131.

13102211221220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13102211221217) and next prime (13102211221223).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13102211221192 and 13102211221201.

It is not an unprimeable number, because it can be changed into a prime (13102211221223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692496419 + ... + 692515338.

It is an arithmetic number, because the mean of its divisors is an integer number (639875432196).

Almost surely, 2^{13102211221220} is an apocalyptic number.

13102211221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13102211221220 is an abundant number, since it is smaller than the sum of its proper divisors (17611809524188).

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

13102211221220 is a wasteful number, since it uses less digits than its factorization.

13102211221220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1385011820 (or 1385011818 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 13102211221220 its reverse (2212211220131), we get a palindrome (15314422441351).

The spelling of 13102211221220 in words is "thirteen trillion, one hundred two billion, two hundred eleven million, two hundred twenty-one thousand, two hundred twenty".