12202121101 has 2 divisors, whose sum is σ = 12202121102. Its totient is φ = 12202121100.

The previous prime is 12202121077. The next prime is 12202121123. The reversal of 12202121101 is 10112120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11540345476 + 661775625 = 107426^2 + 25725^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202121101 - 2¹⁵ = 12202088333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12202121201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6101060550 + 6101060551.

It is an arithmetic number, because the mean of its divisors is an integer number (6101060551).

Almost surely, 2^12202121101 is an apocalyptic number.

It is an amenable number.

12202121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12202121101 is an equidigital number, since it uses as much as digits as its factorization.

12202121101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12202121101 its reverse (10112120221), we get a palindrome (22314241322).

The spelling of 12202121101 in words is "twelve billion, two hundred two million, one hundred twenty-one thousand, one hundred one".