1012221210893 has 2 divisors, whose sum is σ = 1012221210894. Its totient is φ = 1012221210892.

The previous prime is 1012221210859. The next prime is 1012221210901. The reversal of 1012221210893 is 3980121222101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819383419204 + 192837791689 = 905198^2 + 439133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012221210893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012221210823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506110605446 + 506110605447.

It is an arithmetic number, because the mean of its divisors is an integer number (506110605447).

Almost surely, 2^{1012221210893} is an apocalyptic number.

It is an amenable number.

1012221210893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012221210893 is an equidigital number, since it uses as much as digits as its factorization.

1012221210893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

Adding to 1012221210893 its reverse (3980121222101), we get a palindrome (4992342432994).

The spelling of 1012221210893 in words is "one trillion, twelve billion, two hundred twenty-one million, two hundred ten thousand, eight hundred ninety-three".