11211605701 has 2 divisors, whose sum is σ = 11211605702. Its totient is φ = 11211605700.

The previous prime is 11211605687. The next prime is 11211605729. The reversal of 11211605701 is 10750611211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7707084100 + 3504521601 = 87790^2 + 59199^2 .

It is an emirp because it is prime and its reverse (10750611211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211605701 - 2²³ = 11203217093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211605201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605802850 + 5605802851.

It is an arithmetic number, because the mean of its divisors is an integer number (5605802851).

Almost surely, 2^11211605701 is an apocalyptic number.

It is an amenable number.

11211605701 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211605701 is an equidigital number, since it uses as much as digits as its factorization.

11211605701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 25.

The spelling of 11211605701 in words is "eleven billion, two hundred eleven million, six hundred five thousand, seven hundred one".