2221125534 has 24 divisors (see below), whose sum is σ = 4891333512. Its totient is φ = 728237520.

The previous prime is 2221125523. The next prime is 2221125539. The reversal of 2221125534 is 4355211222.

2221125534 is a `hidden beast` number, since 2 + 2 + 2 + 1 + 125 + 534 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2221125498 and 2221125507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221125539) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1010344 + ... + 1012539.

It is an arithmetic number, because the mean of its divisors is an integer number (203805563).

Almost surely, 2^2221125534 is an apocalyptic number.

2221125534 is an abundant number, since it is smaller than the sum of its proper divisors (2670207978).

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

2221125534 is a wasteful number, since it uses less digits than its factorization.

2221125534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022952 (or 2022949 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2221125534 is about 47128.8185084243. The cubic root of 2221125534 is about 1304.7411756044.

Adding to 2221125534 its reverse (4355211222), we get a palindrome (6576336756).

The spelling of 2221125534 in words is "two billion, two hundred twenty-one million, one hundred twenty-five thousand, five hundred thirty-four".