1241122421 has 24 divisors (see below), whose sum is σ = 1596631104. Its totient is φ = 953830080.

The previous prime is 1241122411. The next prime is 1241122433. The reversal of 1241122421 is 1242211421.

It is a de Polignac number, because none of the positive numbers 2^k-1241122421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241122393 and 1241122402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241122411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23576 + ... + 55118.

It is an arithmetic number, because the mean of its divisors is an integer number (66526296).

Almost surely, 2^1241122421 is an apocalyptic number.

1241122421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1241122421 is a deficient number, since it is larger than the sum of its proper divisors (355508683).

1241122421 is a wasteful number, since it uses less digits than its factorization.

1241122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31641 (or 31634 counting only the distinct ones).

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

The square root of 1241122421 is about 35229.5674256724. The cubic root of 1241122421 is about 1074.6611287399.

Adding to 1241122421 its reverse (1242211421), we get a palindrome (2483333842).

The spelling of 1241122421 in words is "one billion, two hundred forty-one million, one hundred twenty-two thousand, four hundred twenty-one".