20221121101 has 2 divisors, whose sum is σ = 20221121102. Its totient is φ = 20221121100.

The previous prime is 20221121077. The next prime is 20221121113. The reversal of 20221121101 is 10112112202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15067317001 + 5153804100 = 122749^2 + 71790^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221121101 - 2¹³ = 20221112909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20221131101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10110560550 + 10110560551.

It is an arithmetic number, because the mean of its divisors is an integer number (10110560551).

Almost surely, 2^20221121101 is an apocalyptic number.

It is an amenable number.

20221121101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20221121101 is an equidigital number, since it uses as much as digits as its factorization.

20221121101 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20221121101 its reverse (10112112202), we get a palindrome (30333233303).

The spelling of 20221121101 in words is "twenty billion, two hundred twenty-one million, one hundred twenty-one thousand, one hundred one".