2201121077 has 2 divisors, whose sum is σ = 2201121078. Its totient is φ = 2201121076.

The previous prime is 2201121071. The next prime is 2201121103. The reversal of 2201121077 is 7701211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1766857156 + 434263921 = 42034^2 + 20839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2201121077 is a prime.

It is a super-2 number, since 2×2201121077² = 9689867991227279858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201121071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100560538 + 1100560539.

It is an arithmetic number, because the mean of its divisors is an integer number (1100560539).

Almost surely, 2^2201121077 is an apocalyptic number.

It is an amenable number.

2201121077 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201121077 is an equidigital number, since it uses as much as digits as its factorization.

2201121077 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 23.

The square root of 2201121077 is about 46916.1067971331. The cubic root of 2201121077 is about 1300.8123279970.

Adding to 2201121077 its reverse (7701211022), we get a palindrome (9902332099).

The spelling of 2201121077 in words is "two billion, two hundred one million, one hundred twenty-one thousand, seventy-seven".