201122222141 has 2 divisors, whose sum is σ = 201122222142. Its totient is φ = 201122222140.

The previous prime is 201122222123. The next prime is 201122222263. The reversal of 201122222141 is 141222221102.

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., 117121372900 + 84000849241 = 342230^2 + 289829^2 .

It is a cyclic number.

It is not a de Polignac number, because 201122222141 - 2²² = 201118027837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201122222111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561111070 + 100561111071.

It is an arithmetic number, because the mean of its divisors is an integer number (100561111071).

Almost surely, 2^201122222141 is an apocalyptic number.

It is an amenable number.

201122222141 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122222141 is an equidigital number, since it uses as much as digits as its factorization.

201122222141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 201122222141 its reverse (141222221102), we get a palindrome (342344443243).

The spelling of 201122222141 in words is "two hundred one billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred forty-one".