1212022232213 has 8 divisors (see below), whose sum is σ = 1310670709656. Its totient is φ = 1114147468800.

The previous prime is 1212022232203. The next prime is 1212022232237. The reversal of 1212022232213 is 3122322202121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 256433870449 + 955588361764 = 506393^2 + 977542^2 .

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 1212022232213 - 2¹² = 1212022228117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212022232203) 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, 193425248 + ... + 193431513.

It is an arithmetic number, because the mean of its divisors is an integer number (163833838707).

Almost surely, 2^{1212022232213} is an apocalyptic number.

1212022232213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1212022232213 is a deficient number, since it is larger than the sum of its proper divisors (98648477443).

1212022232213 is a wasteful number, since it uses less digits than its factorization.

1212022232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386857015.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1212022232213 its reverse (3122322202121), we get a palindrome (4334344434334).

The spelling of 1212022232213 in words is "one trillion, two hundred twelve billion, twenty-two million, two hundred thirty-two thousand, two hundred thirteen".