12202121205 has 16 divisors (see below), whose sum is σ = 21692660160. Its totient is φ = 6507797904.

The previous prime is 12202121201. The next prime is 12202121209. The reversal of 12202121205 is 50212120221.

It is an interprime number because it is at equal distance from previous prime (12202121201) and next prime (12202121209).

It is not a de Polignac number, because 12202121205 - 2² = 12202121201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202121201) 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, 45192907 + ... + 45193176.

It is an arithmetic number, because the mean of its divisors is an integer number (1355791260).

Almost surely, 2^12202121205 is an apocalyptic number.

12202121205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12202121205 is a deficient number, since it is larger than the sum of its proper divisors (9490538955).

12202121205 is an equidigital number, since it uses as much as digits as its factorization.

12202121205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90386097 (or 90386091 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

Adding to 12202121205 its reverse (50212120221), we get a palindrome (62414241426).

The spelling of 12202121205 in words is "twelve billion, two hundred two million, one hundred twenty-one thousand, two hundred five".