201222221147 has 2 divisors, whose sum is σ = 201222221148. Its totient is φ = 201222221146.

The previous prime is 201222221041. The next prime is 201222221171. The reversal of 201222221147 is 741122222102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201222221147 is a prime.

It is not a weakly prime, because it can be changed into another prime (201222271147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100611110573 + 100611110574.

It is an arithmetic number, because the mean of its divisors is an integer number (100611110574).

Almost surely, 2^201222221147 is an apocalyptic number.

201222221147 is a deficient number, since it is larger than the sum of its proper divisors (1).

201222221147 is an equidigital number, since it uses as much as digits as its factorization.

201222221147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 26.

Adding to 201222221147 its reverse (741122222102), we get a palindrome (942344443249).

The spelling of 201222221147 in words is "two hundred one billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred forty-seven".