1021244111312 has 10 divisors (see below), whose sum is σ = 1978660465698. Its totient is φ = 510622055648.

The previous prime is 1021244111287. The next prime is 1021244111351. The reversal of 1021244111312 is 2131114421201.

It can be written as a sum of positive squares in only one way, i.e., 996531013696 + 24713097616 = 998264^2 + 157204^2 .

It is a super-2 number, since 2×1021244111312² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31913878463 + ... + 31913878494.

Almost surely, 2^{1021244111312} is an apocalyptic number.

It is an amenable number.

1021244111312 is a deficient number, since it is larger than the sum of its proper divisors (957416354386).

1021244111312 is an equidigital number, since it uses as much as digits as its factorization.

1021244111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63827756965 (or 63827756959 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1021244111312 its reverse (2131114421201), we get a palindrome (3152358532513).

The spelling of 1021244111312 in words is "one trillion, twenty-one billion, two hundred forty-four million, one hundred eleven thousand, three hundred twelve".