1020021211112 has 16 divisors (see below), whose sum is σ = 1931475809700. Its totient is φ = 504960995200.

The previous prime is 1020021211091. The next prime is 1020021211151. The reversal of 1020021211112 is 2111121200201.

It can be written as a sum of positive squares in 2 ways, for example, as 669834212356 + 350186998756 = 818434^2 + 591766^2 .

It is a super-2 number, since 2×1020021211112² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631200437 + ... + 631202052.

Almost surely, 2^{1020021211112} is an apocalyptic number.

It is an amenable number.

1020021211112 is a deficient number, since it is larger than the sum of its proper divisors (911454598588).

1020021211112 is a wasteful number, since it uses less digits than its factorization.

1020021211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262402596 (or 1262402592 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1020021211112 its reverse (2111121200201), we get a palindrome (3131142411313).

The spelling of 1020021211112 in words is "one trillion, twenty billion, twenty-one million, two hundred eleven thousand, one hundred twelve".