13121210220210 has 48 divisors (see below), whose sum is σ = 35910680607360. Its totient is φ = 3314832055200.

The previous prime is 13121210220199. The next prime is 13121210220211. The reversal of 13121210220210 is 1202201212131.

13121210220210 is a `hidden beast` number, since 1 + 3 + 1 + 21 + 210 + 220 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13121210220211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3836609466 + ... + 3836612885.

It is an arithmetic number, because the mean of its divisors is an integer number (748139179320).

Almost surely, 2^{13121210220210} is an apocalyptic number.

13121210220210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121210220210 is an abundant number, since it is smaller than the sum of its proper divisors (22789470387150).

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

13121210220210 is a wasteful number, since it uses less digits than its factorization.

13121210220210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673222383 (or 7673222380 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 13121210220210 its reverse (1202201212131), we get a palindrome (14323411432341).

The spelling of 13121210220210 in words is "thirteen trillion, one hundred twenty-one billion, two hundred ten million, two hundred twenty thousand, two hundred ten".