1121221212013 has 8 divisors (see below), whose sum is σ = 1281874360832. Its totient is φ = 960687735696.

The previous prime is 1121221211993. The next prime is 1121221212061. The reversal of 1121221212013 is 3102121221211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121221212013 - 2³⁷ = 983782258541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121221210013) 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, 29898045 + ... + 29935522.

It is an arithmetic number, because the mean of its divisors is an integer number (160234295104).

Almost surely, 2^{1121221212013} is an apocalyptic number.

It is an amenable number.

1121221212013 is a deficient number, since it is larger than the sum of its proper divisors (160653148819).

1121221212013 is an equidigital number, since it uses as much as digits as its factorization.

1121221212013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59836251.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1121221212013 its reverse (3102121221211), we get a palindrome (4223342433224).

The spelling of 1121221212013 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-one million, two hundred twelve thousand, thirteen".