2220312377 has 2 divisors, whose sum is σ = 2220312378. Its totient is φ = 2220312376.

The previous prime is 2220312371. The next prime is 2220312427. The reversal of 2220312377 is 7732130222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2019693481 + 200618896 = 44941^2 + 14164^2 .

It is a cyclic number.

It is not a de Polignac number, because 2220312377 - 2⁶ = 2220312313 is a prime.

It is not a weakly prime, because it can be changed into another prime (2220312371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110156188 + 1110156189.

It is an arithmetic number, because the mean of its divisors is an integer number (1110156189).

Almost surely, 2^2220312377 is an apocalyptic number.

It is an amenable number.

2220312377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2220312377 is an equidigital number, since it uses as much as digits as its factorization.

2220312377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 2220312377 is about 47120.1907572539. The cubic root of 2220312377 is about 1304.5819336791.

Adding to 2220312377 its reverse (7732130222), we get a palindrome (9952442599).

The spelling of 2220312377 in words is "two billion, two hundred twenty million, three hundred twelve thousand, three hundred seventy-seven".