1121188635650 has 24 divisors (see below), whose sum is σ = 2085686578944. Its totient is φ = 448416160400.

The previous prime is 1121188635557. The next prime is 1121188635659. The reversal of 1121188635650 is 565368811211.

It is a junction number, because it is equal to n+sod(n) for n = 1121188635595 and 1121188635604.

It is not an unprimeable number, because it can be changed into a prime (1121188635659) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1099406 + ... + 1857705.

It is an arithmetic number, because the mean of its divisors is an integer number (86903607456).

Almost surely, 2^{1121188635650} is an apocalyptic number.

1121188635650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121188635650 is a deficient number, since it is larger than the sum of its proper divisors (964497943294).

1121188635650 is a wasteful number, since it uses less digits than its factorization.

1121188635650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964706 (or 2964701 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 47.

The spelling of 1121188635650 in words is "one trillion, one hundred twenty-one billion, one hundred eighty-eight million, six hundred thirty-five thousand, six hundred fifty".