1121012020242 has 48 divisors (see below), whose sum is σ = 2552695629120. Its totient is φ = 354852707616.

The previous prime is 1121012020237. The next prime is 1121012020291. The reversal of 1121012020242 is 2420202101211.

1121012020242 is a `hidden beast` number, since 11 + 210 + 1 + 202 + 0 + 242 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9682593 + ... + 9797684.

It is an arithmetic number, because the mean of its divisors is an integer number (53181158940).

Almost surely, 2^{1121012020242} is an apocalyptic number.

1121012020242 is an abundant number, since it is smaller than the sum of its proper divisors (1431683608878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121012020242 is a wasteful number, since it uses less digits than its factorization.

1121012020242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19480447 (or 19480444 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1121012020242 its reverse (2420202101211), we get a palindrome (3541214121453).

The spelling of 1121012020242 in words is "one trillion, one hundred twenty-one billion, twelve million, twenty thousand, two hundred forty-two".