1121201001012 has 24 divisors (see below), whose sum is σ = 2676976034656. Its totient is φ = 365042186208.

The previous prime is 1121201000999. The next prime is 1121201001013. The reversal of 1121201001012 is 2101001021211.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121201001013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1086434563 + ... + 1086435594.

Almost surely, 2^{1121201001012} is an apocalyptic number.

1121201001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121201001012 is an abundant number, since it is smaller than the sum of its proper divisors (1555775033644).

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

1121201001012 is a wasteful number, since it uses less digits than its factorization.

1121201001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172870207 (or 2172870205 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1121201001012 its reverse (2101001021211), we get a palindrome (3222202022223).

The spelling of 1121201001012 in words is "one trillion, one hundred twenty-one billion, two hundred one million, one thousand, twelve".