2211607061 has 4 divisors (see below), whose sum is σ = 2341701612. Its totient is φ = 2081512512.

The previous prime is 2211607037. The next prime is 2211607093. The reversal of 2211607061 is 1607061122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1678458961 + 533148100 = 40969^2 + 23090^2 .

It is a cyclic number.

It is not a de Polignac number, because 2211607061 - 2¹⁰ = 2211606037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2211607061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211607561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65047250 + ... + 65047283.

It is an arithmetic number, because the mean of its divisors is an integer number (585425403).

Almost surely, 2^2211607061 is an apocalyptic number.

It is an amenable number.

2211607061 is a deficient number, since it is larger than the sum of its proper divisors (130094551).

2211607061 is a wasteful number, since it uses less digits than its factorization.

2211607061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130094550.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2211607061 is about 47027.7265131964. The cubic root of 2211607061 is about 1302.8747155197.

Adding to 2211607061 its reverse (1607061122), we get a palindrome (3818668183).

The spelling of 2211607061 in words is "two billion, two hundred eleven million, six hundred seven thousand, sixty-one".