1121301213012 has 72 divisors (see below), whose sum is σ = 2944270422912. Its totient is φ = 373144968000.

The previous prime is 1121301212951. The next prime is 1121301213029. The reversal of 1121301213012 is 2103121031211.

1121301213012 is a `hidden beast` number, since 112 + 130 + 121 + 301 + 2 = 666.

It is a super-2 number, since 2×1121301213012² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375564 + ... + 1543907.

Almost surely, 2^{1121301213012} is an apocalyptic number.

1121301213012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121301213012 is an abundant number, since it is smaller than the sum of its proper divisors (1822969209900).

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

1121301213012 is a wasteful number, since it uses less digits than its factorization.

1121301213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920091 (or 1920077 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1121301213012 its reverse (2103121031211), we get a palindrome (3224422244223).

The spelling of 1121301213012 in words is "one trillion, one hundred twenty-one billion, three hundred one million, two hundred thirteen thousand, twelve".