11121000201021 has 32 divisors (see below), whose sum is σ = 15762153242880. Its totient is φ = 6950371011584.

The previous prime is 11121000200939. The next prime is 11121000201097. The reversal of 11121000201021 is 12010200012111.

It is a cyclic number.

It is not a de Polignac number, because 11121000201021 - 2¹⁵ = 11121000168253 is a prime.

It is a super-2 number, since 2×11121000201021² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121000200988 and 11121000201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121000202021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101736631 + ... + 101845883.

It is an arithmetic number, because the mean of its divisors is an integer number (492567288840).

Almost surely, 2^{11121000201021} is an apocalyptic number.

It is an amenable number.

11121000201021 is a deficient number, since it is larger than the sum of its proper divisors (4641153041859).

11121000201021 is a wasteful number, since it uses less digits than its factorization.

11121000201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117125.

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

Adding to 11121000201021 its reverse (12010200012111), we get a palindrome (23131200213132).

The spelling of 11121000201021 in words is "eleven trillion, one hundred twenty-one billion, two hundred one thousand, twenty-one".