1222011233213 has 8 divisors (see below), whose sum is σ = 1256086356408. Its totient is φ = 1188344195584.

The previous prime is 1222011233207. The next prime is 1222011233237. The reversal of 1222011233213 is 3123321102221.

It can be written as a sum of positive squares in 4 ways, for example, as 11423761924 + 1210587471289 = 106882^2 + 1100267^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222011233213 is a prime.

It is a super-2 number, since 2×1222011233213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222011233263) 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, 102015320 + ... + 102027297.

It is an arithmetic number, because the mean of its divisors is an integer number (157010794551).

Almost surely, 2^{1222011233213} is an apocalyptic number.

It is an amenable number.

1222011233213 is a deficient number, since it is larger than the sum of its proper divisors (34075123195).

1222011233213 is a wasteful number, since it uses less digits than its factorization.

1222011233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204042783.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1222011233213 its reverse (3123321102221), we get a palindrome (4345332335434).

The spelling of 1222011233213 in words is "one trillion, two hundred twenty-two billion, eleven million, two hundred thirty-three thousand, two hundred thirteen".