1121010120021 has 8 divisors (see below), whose sum is σ = 1630560174624. Its totient is φ = 679400072720.

The previous prime is 1121010120011. The next prime is 1121010120079. The reversal of 1121010120021 is 1200210101211.

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 1121010120021 - 2⁷ = 1121010119893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121010119979 and 1121010120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121010120011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16985001786 + ... + 16985001851.

It is an arithmetic number, because the mean of its divisors is an integer number (203820021828).

Almost surely, 2^{1121010120021} is an apocalyptic number.

1121010120021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1121010120021 is a deficient number, since it is larger than the sum of its proper divisors (509550054603).

1121010120021 is a wasteful number, since it uses less digits than its factorization.

1121010120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33970003651.

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

Adding to 1121010120021 its reverse (1200210101211), we get a palindrome (2321220221232).

The spelling of 1121010120021 in words is "one trillion, one hundred twenty-one billion, ten million, one hundred twenty thousand, twenty-one".