2221640461222 has 64 divisors (see below), whose sum is σ = 4115842698240. Its totient is φ = 875819412864.

The previous prime is 2221640461133. The next prime is 2221640461241.

It is a happy number.

2221640461222 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79492183 + ... + 79520125.

It is an arithmetic number, because the mean of its divisors is an integer number (64310042160).

Almost surely, 2^{2221640461222} is an apocalyptic number.

2221640461222 is a deficient number, since it is larger than the sum of its proper divisors (1894202237018).

2221640461222 is a wasteful number, since it uses less digits than its factorization.

2221640461222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29477.

The product of its (nonzero) digits is 36864, while the sum is 34.

It can be divided in two parts, 2221640 and 461222, that added together give a palindrome (2682862).

The spelling of 2221640461222 in words is "two trillion, two hundred twenty-one billion, six hundred forty million, four hundred sixty-one thousand, two hundred twenty-two".