7121144241 has 20 divisors (see below), whose sum is σ = 11100272832. Its totient is φ = 4541018328.

The previous prime is 7121144221. The next prime is 7121144257. The reversal of 7121144241 is 1424411217.

It is a happy number.

7121144241 is a `hidden beast` number, since 7 + 1 + 211 + 442 + 4 + 1 = 666.

It is not a de Polignac number, because 7121144241 - 2¹⁷ = 7121013169 is a prime.

It is a super-2 number, since 2×7121144241² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7121144221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1909341 + ... + 1913066.

Almost surely, 2^7121144241 is an apocalyptic number.

It is an amenable number.

7121144241 is a deficient number, since it is larger than the sum of its proper divisors (3979128591).

7121144241 is a wasteful number, since it uses less digits than its factorization.

7121144241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3822442 (or 3822433 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 7121144241 is about 84386.8724447114. The cubic root of 7121144241 is about 1923.9033944007.

Adding to 7121144241 its reverse (1424411217), we get a palindrome (8545555458).

The spelling of 7121144241 in words is "seven billion, one hundred twenty-one million, one hundred forty-four thousand, two hundred forty-one".