2221023344444 has 48 divisors (see below), whose sum is σ = 4005691595136. Its totient is φ = 1076871360000.

The previous prime is 2221023344411. The next prime is 2221023344489. The reversal of 2221023344444 is 4444433201222.

It is a super-2 number, since 2×2221023344444² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134787134 + ... + 134803610.

It is an arithmetic number, because the mean of its divisors is an integer number (83451908232).

Almost surely, 2^{2221023344444} is an apocalyptic number.

It is an amenable number.

2221023344444 is a deficient number, since it is larger than the sum of its proper divisors (1784668250692).

2221023344444 is a wasteful number, since it uses less digits than its factorization.

2221023344444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21446 (or 21444 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 2221023344444 its reverse (4444433201222), we get a palindrome (6665456545666).

The spelling of 2221023344444 in words is "two trillion, two hundred twenty-one billion, twenty-three million, three hundred forty-four thousand, four hundred forty-four".