1121122211012 has 6 divisors (see below), whose sum is σ = 1961963869278. Its totient is φ = 560561105504.

The previous prime is 1121122210973. The next prime is 1121122211089. The reversal of 1121122211012 is 2101122211211.

It can be written as a sum of positive squares in only one way, i.e., 1094756245636 + 26365965376 = 1046306^2 + 162376^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140140276373 + ... + 140140276380.

It is an arithmetic number, because the mean of its divisors is an integer number (326993978213).

Almost surely, 2^{1121122211012} is an apocalyptic number.

It is an amenable number.

1121122211012 is a deficient number, since it is larger than the sum of its proper divisors (840841658266).

1121122211012 is a wasteful number, since it uses less digits than its factorization.

1121122211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280280552757 (or 280280552755 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1121122211012 its reverse (2101122211211), we get a palindrome (3222244422223).

The spelling of 1121122211012 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred eleven thousand, twelve".