2221465755 has 16 divisors (see below), whose sum is σ = 3650409504. Its totient is φ = 1152760320.

The previous prime is 2221465751. The next prime is 2221465781. The reversal of 2221465755 is 5575641222.

It is not a de Polignac number, because 2221465755 - 2² = 2221465751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221465751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2000766 + ... + 2001875.

It is an arithmetic number, because the mean of its divisors is an integer number (228150594).

Almost surely, 2^2221465755 is an apocalyptic number.

2221465755 is a deficient number, since it is larger than the sum of its proper divisors (1428943749).

2221465755 is a wasteful number, since it uses less digits than its factorization.

2221465755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002686.

The product of its digits is 168000, while the sum is 39.

The square root of 2221465755 is about 47132.4278496239. The cubic root of 2221465755 is about 1304.8077901320.

The spelling of 2221465755 in words is "two billion, two hundred twenty-one million, four hundred sixty-five thousand, seven hundred fifty-five".