1012131222111 has 6 divisors (see below), whose sum is σ = 1461967320840. Its totient is φ = 674754148068.

The previous prime is 1012131222049. The next prime is 1012131222119. The reversal of 1012131222111 is 1112221312101.

It is a happy number.

1012131222111 is a `hidden beast` number, since 1 + 0 + 121 + 312 + 221 + 11 = 666.

It is not a de Polignac number, because 1012131222111 - 2⁹ = 1012131221599 is a prime.

It is a super-2 number, since 2×1012131222111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012131222119) 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, 56229512331 + ... + 56229512348.

It is an arithmetic number, because the mean of its divisors is an integer number (243661220140).

Almost surely, 2^{1012131222111} is an apocalyptic number.

1012131222111 is a deficient number, since it is larger than the sum of its proper divisors (449836098729).

1012131222111 is a wasteful number, since it uses less digits than its factorization.

1012131222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112459024685 (or 112459024682 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1012131222111 its reverse (1112221312101), we get a palindrome (2124352534212).

The spelling of 1012131222111 in words is "one trillion, twelve billion, one hundred thirty-one million, two hundred twenty-two thousand, one hundred eleven".