1121121001012 has 24 divisors (see below), whose sum is σ = 1969240883400. Its totient is φ = 558481351680.

The previous prime is 1121121000997. The next prime is 1121121001037. The reversal of 1121121001012 is 2101001211211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 260185687056 + 860935313956 = 510084^2 + 927866^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121121000983 and 1121121001001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7738908 + ... + 7882444.

It is an arithmetic number, because the mean of its divisors is an integer number (82051703475).

Almost surely, 2^{1121121001012} is an apocalyptic number.

It is an amenable number.

1121121001012 is a deficient number, since it is larger than the sum of its proper divisors (848119882388).

1121121001012 is a wasteful number, since it uses less digits than its factorization.

1121121001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150771 (or 150769 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1121121001012 its reverse (2101001211211), we get a palindrome (3222122212223).

The spelling of 1121121001012 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-one million, one thousand, twelve".