1121112200021 has 8 divisors (see below), whose sum is σ = 1223390507904. Its totient is φ = 1018893728320.

The previous prime is 1121112200017. The next prime is 1121112200023. The reversal of 1121112200021 is 1200022111211.

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 1121112200021 - 2² = 1121112200017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121112199969 and 1121112200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121112200023) 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, 14919860 + ... + 14994813.

It is an arithmetic number, because the mean of its divisors is an integer number (152923813488).

Almost surely, 2^{1121112200021} is an apocalyptic number.

1121112200021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121112200021 is a deficient number, since it is larger than the sum of its proper divisors (102278307883).

1121112200021 is a wasteful number, since it uses less digits than its factorization.

1121112200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29918091.

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

Adding to 1121112200021 its reverse (1200022111211), we get a palindrome (2321134311232).

It can be divided in two parts, 112111 and 2200021, that added together give a palindrome (2312132).

The spelling of 1121112200021 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, two hundred thousand, twenty-one".