1011220321112 has 16 divisors (see below), whose sum is σ = 1896050583360. Its totient is φ = 505606832224.

The previous prime is 1011220321073. The next prime is 1011220321159. The reversal of 1011220321112 is 2111230221101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1283678 + ... + 1915794.

It is an arithmetic number, because the mean of its divisors is an integer number (118503161460).

Almost surely, 2^{1011220321112} is an apocalyptic number.

It is an amenable number.

1011220321112 is a deficient number, since it is larger than the sum of its proper divisors (884830262248).

1011220321112 is a wasteful number, since it uses less digits than its factorization.

1011220321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832090 (or 832086 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1011220321112 its reverse (2111230221101), we get a palindrome (3122450542213).

The spelling of 1011220321112 in words is "one trillion, eleven billion, two hundred twenty million, three hundred twenty-one thousand, one hundred twelve".