11121100022021 has 16 divisors (see below), whose sum is σ = 12244592659200. Its totient is φ = 10016372520000.

The previous prime is 11121100022009. The next prime is 11121100022069. The reversal of 11121100022021 is 12022000112111.

It is not a de Polignac number, because 11121100022021 - 2¹⁰ = 11121100020997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121100021987 and 11121100022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121100028021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12149060 + ... + 13032338.

It is an arithmetic number, because the mean of its divisors is an integer number (765287041200).

Almost surely, 2^{11121100022021} is an apocalyptic number.

11121100022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11121100022021 is a deficient number, since it is larger than the sum of its proper divisors (1123492637179).

11121100022021 is a wasteful number, since it uses less digits than its factorization.

11121100022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893900.

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

Adding to 11121100022021 its reverse (12022000112111), we get a palindrome (23143100134132).

The spelling of 11121100022021 in words is "eleven trillion, one hundred twenty-one billion, one hundred million, twenty-two thousand, twenty-one".