1121512542205 has 16 divisors (see below), whose sum is σ = 1468300483008. Its totient is φ = 815568480000.

The previous prime is 1121512542173. The next prime is 1121512542211. The reversal of 1121512542205 is 5022452151211.

It is not a de Polignac number, because 1121512542205 - 2⁵ = 1121512542173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371436 + ... + 1543045.

It is an arithmetic number, because the mean of its divisors is an integer number (91768780188).

Almost surely, 2^{1121512542205} is an apocalyptic number.

It is an amenable number.

1121512542205 is a deficient number, since it is larger than the sum of its proper divisors (346787940803).

1121512542205 is a wasteful number, since it uses less digits than its factorization.

1121512542205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925148.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 1121512542205 its reverse (5022452151211), we get a palindrome (6143964693416).

The spelling of 1121512542205 in words is "one trillion, one hundred twenty-one billion, five hundred twelve million, five hundred forty-two thousand, two hundred five".