1121112211012 has 6 divisors (see below), whose sum is σ = 1961946369278. Its totient is φ = 560556105504.

The previous prime is 1121112211003. The next prime is 1121112211081. The reversal of 1121112211012 is 2101122111211.

It can be written as a sum of positive squares in only one way, i.e., 1060706368836 + 60405842176 = 1029906^2 + 245776^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140139026373 + ... + 140139026380.

Almost surely, 2^{1121112211012} is an apocalyptic number.

It is an amenable number.

1121112211012 is a deficient number, since it is larger than the sum of its proper divisors (840834158266).

1121112211012 is a wasteful number, since it uses less digits than its factorization.

1121112211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280278052757 (or 280278052755 counting only the distinct ones).

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

Adding to 1121112211012 its reverse (2101122111211), we get a palindrome (3222234322223).

The spelling of 1121112211012 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, two hundred eleven thousand, twelve".