1012022220213 has 6 divisors (see below), whose sum is σ = 1461809873654. Its totient is φ = 674681480136.

The previous prime is 1012022220193. The next prime is 1012022220257. The reversal of 1012022220213 is 3120222202101.

It can be written as a sum of positive squares in only one way, i.e., 600651350289 + 411370869924 = 775017^2 + 641382^2 .

It is not a de Polignac number, because 1012022220213 - 2⁹ = 1012022219701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012022220613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56223456670 + ... + 56223456687.

Almost surely, 2^{1012022220213} is an apocalyptic number.

It is an amenable number.

1012022220213 is a deficient number, since it is larger than the sum of its proper divisors (449787653441).

1012022220213 is a wasteful number, since it uses less digits than its factorization.

1012022220213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112446913363 (or 112446913360 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1012022220213 its reverse (3120222202101), we get a palindrome (4132244422314).

The spelling of 1012022220213 in words is "one trillion, twelve billion, twenty-two million, two hundred twenty thousand, two hundred thirteen".