11120021012021 has 8 divisors (see below), whose sum is σ = 11421974291160. Its totient is φ = 10818142057728.

The previous prime is 11120021012017. The next prime is 11120021012039. The reversal of 11120021012021 is 12021012002111.

It can be written as a sum of positive squares in 4 ways, for example, as 1910161711396 + 9209859300625 = 1382086^2 + 3034775^2 .

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 11120021012021 - 2² = 11120021012017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11120021011987 and 11120021012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120021002021) 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, 18277856 + ... + 18876441.

It is an arithmetic number, because the mean of its divisors is an integer number (1427746786395).

Almost surely, 2^{11120021012021} is an apocalyptic number.

It is an amenable number.

11120021012021 is a deficient number, since it is larger than the sum of its proper divisors (301953279139).

11120021012021 is an equidigital number, since it uses as much as digits as its factorization.

11120021012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37162423.

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

Adding to 11120021012021 its reverse (12021012002111), we get a palindrome (23141033014132).

The spelling of 11120021012021 in words is "eleven trillion, one hundred twenty billion, twenty-one million, twelve thousand, twenty-one".