2220927761 has 16 divisors (see below), whose sum is σ = 2475540480. Its totient is φ = 1978637760.

The previous prime is 2220927733. The next prime is 2220927767. The reversal of 2220927761 is 1677290222.

It is a cyclic number.

It is not a de Polignac number, because 2220927761 - 2⁶ = 2220927697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220927767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147155 + ... + 161543.

It is an arithmetic number, because the mean of its divisors is an integer number (154721280).

Almost surely, 2^2220927761 is an apocalyptic number.

It is an amenable number.

2220927761 is a deficient number, since it is larger than the sum of its proper divisors (254612719).

2220927761 is a wasteful number, since it uses less digits than its factorization.

2220927761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14816.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 2220927761 is about 47126.7202444643. The cubic root of 2220927761 is about 1304.7024489571.

The spelling of 2220927761 in words is "two billion, two hundred twenty million, nine hundred twenty-seven thousand, seven hundred sixty-one".