220210101971 has 2 divisors, whose sum is σ = 220210101972. Its totient is φ = 220210101970.

The previous prime is 220210101941. The next prime is 220210102039. The reversal of 220210101971 is 179101012022.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220210101971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220210101971.

It is not a weakly prime, because it can be changed into another prime (220210101941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110105050985 + 110105050986.

It is an arithmetic number, because the mean of its divisors is an integer number (110105050986).

Almost surely, 2^220210101971 is an apocalyptic number.

220210101971 is a deficient number, since it is larger than the sum of its proper divisors (1).

220210101971 is an equidigital number, since it uses as much as digits as its factorization.

220210101971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 220210101971 its reverse (179101012022), we get a palindrome (399311113993).

The spelling of 220210101971 in words is "two hundred twenty billion, two hundred ten million, one hundred one thousand, nine hundred seventy-one".