1124221021 has 8 divisors (see below), whose sum is σ = 1401626304. Its totient is φ = 876016320.

The previous prime is 1124221009. The next prime is 1124221081. The reversal of 1124221021 is 1201224211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1124221021 - 2⁷ = 1124220893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1124220986 and 1124221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124221081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7300060 + ... + 7300213.

It is an arithmetic number, because the mean of its divisors is an integer number (175203288).

Almost surely, 2^1124221021 is an apocalyptic number.

1124221021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1124221021 is a deficient number, since it is larger than the sum of its proper divisors (277405283).

1124221021 is a wasteful number, since it uses less digits than its factorization.

1124221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14600291.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1124221021 is about 33529.4053183172. The cubic root of 1124221021 is about 1039.8018054890.

Adding to 1124221021 its reverse (1201224211), we get a palindrome (2325445232).

The spelling of 1124221021 in words is "one billion, one hundred twenty-four million, two hundred twenty-one thousand, twenty-one".