1012222011111 has 48 divisors (see below), whose sum is σ = 1438782694272. Its totient is φ = 632819387200.

The previous prime is 1012222011061. The next prime is 1012222011113. The reversal of 1012222011111 is 1111102222101.

It is a happy number.

It is not a de Polignac number, because 1012222011111 - 2⁷ = 1012222010983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012222011113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17226121 + ... + 17284781.

It is an arithmetic number, because the mean of its divisors is an integer number (29974639464).

Almost surely, 2^{1012222011111} is an apocalyptic number.

1012222011111 is a deficient number, since it is larger than the sum of its proper divisors (426560683161).

1012222011111 is a wasteful number, since it uses less digits than its factorization.

1012222011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58924 (or 58901 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1012222011111 its reverse (1111102222101), we get a palindrome (2123324233212).

The spelling of 1012222011111 in words is "one trillion, twelve billion, two hundred twenty-two million, eleven thousand, one hundred eleven".