2148222077 has 2 divisors, whose sum is σ = 2148222078. Its totient is φ = 2148222076.

The previous prime is 2148222073. The next prime is 2148222113. The reversal of 2148222077 is 7702228412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1822094596 + 326127481 = 42686^2 + 18059^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148222077 - 2² = 2148222073 is a prime.

It is a super-2 number, since 2×2148222077² = 9229716184220387858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148222071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074111038 + 1074111039.

It is an arithmetic number, because the mean of its divisors is an integer number (1074111039).

Almost surely, 2^2148222077 is an apocalyptic number.

It is an amenable number.

2148222077 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148222077 is an equidigital number, since it uses as much as digits as its factorization.

2148222077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 2148222077 is about 46348.9166755815. The cubic root of 2148222077 is about 1290.3070152417.

The spelling of 2148222077 in words is "two billion, one hundred forty-eight million, two hundred twenty-two thousand, seventy-seven".