2211282013444 has 27 divisors (see below), whose sum is σ = 4501580765493. Its totient is φ = 947683369248.

The previous prime is 2211282013337. The next prime is 2211282013459. The reversal of 2211282013444 is 4443102821122.

The square root of 2211282013444 is 1487038.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 290596464900 + 1920685548544 = 539070^2 + 1385888^2 .

It is a super-2 number, since 2×2211282013444² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20765424 + ... + 20871640.

Almost surely, 2^{2211282013444} is an apocalyptic number.

2211282013444 is the 1487038-th square number.

It is an amenable number.

2211282013444 is an abundant number, since it is smaller than the sum of its proper divisors (2290298752049).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2211282013444 is an frugal number, since it uses more digits than its factorization.

2211282013444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212452 (or 106226 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

Adding to 2211282013444 its reverse (4443102821122), we get a palindrome (6654384834566).

The spelling of 2211282013444 in words is "two trillion, two hundred eleven billion, two hundred eighty-two million, thirteen thousand, four hundred forty-four".