22121000141 has 2 divisors, whose sum is σ = 22121000142. Its totient is φ = 22121000140.

The previous prime is 22121000137. The next prime is 22121000147. The reversal of 22121000141 is 14100012122.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15830924041 + 6290076100 = 125821^2 + 79310^2 .

It is a cyclic number.

It is not a de Polignac number, because 22121000141 - 2² = 22121000137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22121000147) 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, 11060500070 + 11060500071.

It is an arithmetic number, because the mean of its divisors is an integer number (11060500071).

Almost surely, 2^22121000141 is an apocalyptic number.

It is an amenable number.

22121000141 is a deficient number, since it is larger than the sum of its proper divisors (1).

22121000141 is an equidigital number, since it uses as much as digits as its factorization.

22121000141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22121000141 its reverse (14100012122), we get a palindrome (36221012263).

The spelling of 22121000141 in words is "twenty-two billion, one hundred twenty-one million, one hundred forty-one", and thus it is an aban number.