1122230021 has 4 divisors (see below), whose sum is σ = 1224250944. Its totient is φ = 1020209100.

The previous prime is 1122230009. The next prime is 1122230059. The reversal of 1122230021 is 1200322211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122230021 - 2¹⁴ = 1122213637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122229978 and 1122230005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122230521) 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, 51010445 + ... + 51010466.

It is an arithmetic number, because the mean of its divisors is an integer number (306062736).

Almost surely, 2^1122230021 is an apocalyptic number.

1122230021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122230021 is a deficient number, since it is larger than the sum of its proper divisors (102020923).

1122230021 is a wasteful number, since it uses less digits than its factorization.

1122230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102020922.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1122230021 is about 33499.7018046430. The cubic root of 1122230021 is about 1039.1876116910.

Adding to 1122230021 its reverse (1200322211), we get a palindrome (2322552232).

The spelling of 1122230021 in words is "one billion, one hundred twenty-two million, two hundred thirty thousand, twenty-one".