2221124141 has 4 divisors (see below), whose sum is σ = 2223728892. Its totient is φ = 2218519392.

The previous prime is 2221124117. The next prime is 2221124189. The reversal of 2221124141 is 1414211222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1414211222 = 2 ⋅707105611.

It can be written as a sum of positive squares in 2 ways, for example, as 732784900 + 1488339241 = 27070^2 + 38579^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2221124141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221124041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1301096 + ... + 1302801.

It is an arithmetic number, because the mean of its divisors is an integer number (555932223).

Almost surely, 2^2221124141 is an apocalyptic number.

It is an amenable number.

2221124141 is a deficient number, since it is larger than the sum of its proper divisors (2604751).

2221124141 is an equidigital number, since it uses as much as digits as its factorization.

2221124141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604750.

The product of its digits is 256, while the sum is 20.

The square root of 2221124141 is about 47128.8037297787. The cubic root of 2221124141 is about 1304.7409028441.

Adding to 2221124141 its reverse (1414211222), we get a palindrome (3635335363).

The spelling of 2221124141 in words is "two billion, two hundred twenty-one million, one hundred twenty-four thousand, one hundred forty-one".