1222332021 has 12 divisors (see below), whose sum is σ = 1765906272. Its totient is φ = 814742376.

The previous prime is 1222331989. The next prime is 1222332031. The reversal of 1222332021 is 1202332221.

It is not a de Polignac number, because 1222332021 - 2⁵ = 1222331989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222331985 and 1222332003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222332031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70960 + ... + 86486.

It is an arithmetic number, because the mean of its divisors is an integer number (147158856).

Almost surely, 2^1222332021 is an apocalyptic number.

It is an amenable number.

1222332021 is a deficient number, since it is larger than the sum of its proper divisors (543574251).

1222332021 is a wasteful number, since it uses less digits than its factorization.

1222332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24280 (or 24277 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1222332021 is about 34961.8652391431. The cubic root of 1222332021 is about 1069.2101257080.

Adding to 1222332021 its reverse (1202332221), we get a palindrome (2424664242).

It can be divided in two parts, 12223 and 32021, that added together give a palindrome (44244).

The spelling of 1222332021 in words is "one billion, two hundred twenty-two million, three hundred thirty-two thousand, twenty-one".