211142212147 has 2 divisors, whose sum is σ = 211142212148. Its totient is φ = 211142212146.

The previous prime is 211142212121. The next prime is 211142212153. The reversal of 211142212147 is 741212241112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211142212147 is a prime.

It is not a weakly prime, because it can be changed into another prime (211142213147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105571106073 + 105571106074.

It is an arithmetic number, because the mean of its divisors is an integer number (105571106074).

Almost surely, 2^211142212147 is an apocalyptic number.

211142212147 is a deficient number, since it is larger than the sum of its proper divisors (1).

211142212147 is an equidigital number, since it uses as much as digits as its factorization.

211142212147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 28.

Adding to 211142212147 its reverse (741212241112), we get a palindrome (952354453259).

The spelling of 211142212147 in words is "two hundred eleven billion, one hundred forty-two million, two hundred twelve thousand, one hundred forty-seven".