1121440212999 has 12 divisors (see below), whose sum is σ = 1621215903216. Its totient is φ = 747000123552.

The previous prime is 1121440212947. The next prime is 1121440213031. The reversal of 1121440212999 is 9992120441211.

It is a happy number.

1121440212999 is a `hidden beast` number, since 1 + 1 + 214 + 402 + 1 + 29 + 9 + 9 = 666.

It is not a de Polignac number, because 1121440212999 - 2³² = 1117145245703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121440202999) 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, 52212427 + ... + 52233900.

It is an arithmetic number, because the mean of its divisors is an integer number (135101325268).

Almost surely, 2^{1121440212999} is an apocalyptic number.

1121440212999 is a deficient number, since it is larger than the sum of its proper divisors (499775690217).

1121440212999 is a wasteful number, since it uses less digits than its factorization.

1121440212999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104447526 (or 104447523 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

It can be divided in two parts, 1121440212 and 999, that added together give a palindrome (1121441211).

The spelling of 1121440212999 in words is "one trillion, one hundred twenty-one billion, four hundred forty million, two hundred twelve thousand, nine hundred ninety-nine".