211220011017007 has 2 divisors, whose sum is σ = 211220011017008. Its totient is φ = 211220011017006.

The previous prime is 211220011016983. The next prime is 211220011017019. The reversal of 211220011017007 is 700710110022112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211220011017007 - 2¹¹ = 211220011014959 is a prime.

It is a super-2 number, since 2×211220011017007² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211220011027007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610005508503 + 105610005508504.

It is an arithmetic number, because the mean of its divisors is an integer number (105610005508504).

Almost surely, 2^{211220011017007} is an apocalyptic number.

211220011017007 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220011017007 is an equidigital number, since it uses as much as digits as its factorization.

211220011017007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392, while the sum is 25.

Adding to 211220011017007 its reverse (700710110022112), we get a palindrome (911930121039119).

The spelling of 211220011017007 in words is "two hundred eleven trillion, two hundred twenty billion, eleven million, seventeen thousand, seven".