1112021121 has 8 divisors (see below), whose sum is σ = 1492646400. Its totient is φ = 736371632.

The previous prime is 1112021111. The next prime is 1112021123. The reversal of 1112021121 is 1211202111.

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 1112021121 - 2¹⁰ = 1112020097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1112021097 and 1112021106.

It is not an unprimeable number, because it can be changed into a prime (1112021123) 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, 1243425 + ... + 1244318.

It is an arithmetic number, because the mean of its divisors is an integer number (186580800).

Almost surely, 2^1112021121 is an apocalyptic number.

It is an amenable number.

1112021121 is a deficient number, since it is larger than the sum of its proper divisors (380625279).

1112021121 is a wasteful number, since it uses less digits than its factorization.

1112021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2487895.

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

The square root of 1112021121 is about 33346.9806879124. The cubic root of 1112021121 is about 1036.0268527225.

Adding to 1112021121 its reverse (1211202111), we get a palindrome (2323223232).

The spelling of 1112021121 in words is "one billion, one hundred twelve million, twenty-one thousand, one hundred twenty-one".