1011162021512 has 16 divisors (see below), whose sum is σ = 1901554696860. Its totient is φ = 504080769024.

The previous prime is 1011162021503. The next prime is 1011162021517. The reversal of 1011162021512 is 2151202611101.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1011138846916 + 23174596 = 1005554^2 + 4814^2 .

It is a super-2 number, since 2×1011162021512² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1011162021517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187527353 + ... + 187532744.

Almost surely, 2^{1011162021512} is an apocalyptic number.

It is an amenable number.

1011162021512 is a deficient number, since it is larger than the sum of its proper divisors (890392675348).

1011162021512 is a wasteful number, since it uses less digits than its factorization.

1011162021512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375060440 (or 375060436 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 1011162021512 its reverse (2151202611101), we get a palindrome (3162364632613).

The spelling of 1011162021512 in words is "one trillion, eleven billion, one hundred sixty-two million, twenty-one thousand, five hundred twelve".