12202109989 has 2 divisors, whose sum is σ = 12202109990. Its totient is φ = 12202109988.

The previous prime is 12202109987. The next prime is 12202110007. The reversal of 12202109989 is 98990120221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8983817089 + 3218292900 = 94783^2 + 56730^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202109989 - 2¹ = 12202109987 is a prime.

Together with 12202109987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202109987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101054994 + 6101054995.

It is an arithmetic number, because the mean of its divisors is an integer number (6101054995).

Almost surely, 2^12202109989 is an apocalyptic number.

It is an amenable number.

12202109989 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202109989 is an equidigital number, since it uses as much as digits as its factorization.

12202109989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 43.

It can be divided in two parts, 1220 and 2109989, that added together give a square (2111209 = 1453²).

The spelling of 12202109989 in words is "twelve billion, two hundred two million, one hundred nine thousand, nine hundred eighty-nine".