2221022124 has 18 divisors (see below), whose sum is σ = 5614250460. Its totient is φ = 740340696.

The previous prime is 2221022123. The next prime is 2221022147. The reversal of 2221022124 is 4212201222.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2221022097 and 2221022106.

It is not an unprimeable number, because it can be changed into a prime (2221022123) 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 5 ways as a sum of consecutive naturals, for example, 30847494 + ... + 30847565.

Almost surely, 2^2221022124 is an apocalyptic number.

It is an amenable number.

2221022124 is an abundant number, since it is smaller than the sum of its proper divisors (3393228336).

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

2221022124 is a wasteful number, since it uses less digits than its factorization.

2221022124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61695069 (or 61695064 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 2221022124 is about 47127.7213962228. The cubic root of 2221022124 is about 1304.7209268046.

Adding to 2221022124 its reverse (4212201222), we get a palindrome (6433223346).

The spelling of 2221022124 in words is "two billion, two hundred twenty-one million, twenty-two thousand, one hundred twenty-four".