1112002121021 has 8 divisors (see below), whose sum is σ = 1216118397888. Its totient is φ = 1008390040000.

The previous prime is 1112002120981. The next prime is 1112002121063. The reversal of 1112002121021 is 1201212002111.

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 1112002121021 - 2¹⁰ = 1112002119997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1112002120987 and 1112002121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112002121071) 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, 126044345 + ... + 126053166.

It is an arithmetic number, because the mean of its divisors is an integer number (152014799736).

Almost surely, 2^{1112002121021} is an apocalyptic number.

1112002121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112002121021 is a deficient number, since it is larger than the sum of its proper divisors (104116276867).

1112002121021 is a wasteful number, since it uses less digits than its factorization.

1112002121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252097923.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1112002121021 its reverse (1201212002111), we get a palindrome (2313214123132).

The spelling of 1112002121021 in words is "one trillion, one hundred twelve billion, two million, one hundred twenty-one thousand, twenty-one".