1222232212021 has 8 divisors (see below), whose sum is σ = 1287726664320. Its totient is φ = 1156854403872.

The previous prime is 1222232212001. The next prime is 1222232212079. The reversal of 1222232212021 is 1202122322221.

It is a happy number.

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

It is not a de Polignac number, because 1222232212021 - 2⁹ = 1222232211509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222232211983 and 1222232212001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222232212001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29139520 + ... + 29181433.

It is an arithmetic number, because the mean of its divisors is an integer number (160965833040).

Almost surely, 2^{1222232212021} is an apocalyptic number.

It is an amenable number.

1222232212021 is a deficient number, since it is larger than the sum of its proper divisors (65494452299).

1222232212021 is a wasteful number, since it uses less digits than its factorization.

1222232212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58322075.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1222232212021 its reverse (1202122322221), we get a palindrome (2424354534242).

The spelling of 1222232212021 in words is "one trillion, two hundred twenty-two billion, two hundred thirty-two million, two hundred twelve thousand, twenty-one".