1011222222112 has 12 divisors (see below), whose sum is σ = 1990843749846. Its totient is φ = 505611111040.

The previous prime is 1011222222077. The next prime is 1011222222119. The reversal of 1011222222112 is 2112222221101.

It can be written as a sum of positive squares in only one way, i.e., 963609236496 + 47612985616 = 981636^2 + 218204^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1011222222112.

It is not an unprimeable number, because it can be changed into a prime (1011222222119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15800347189 + ... + 15800347252.

Almost surely, 2^{1011222222112} is an apocalyptic number.

It is an amenable number.

1011222222112 is a deficient number, since it is larger than the sum of its proper divisors (979621527734).

1011222222112 is an equidigital number, since it uses as much as digits as its factorization.

1011222222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31600694451 (or 31600694443 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1011222222112 its reverse (2112222221101), we get a palindrome (3123444443213).

The spelling of 1011222222112 in words is "one trillion, eleven billion, two hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".