11121202000021 has 16 divisors (see below), whose sum is σ = 11349024136960. Its totient is φ = 10895430268800.

The previous prime is 11121202000001. The next prime is 11121202000033. The reversal of 11121202000021 is 12000020212111.

11121202000021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11121202000021 - 2¹⁷ = 11121201868949 is a prime.

It is a super-2 number, since 2×11121202000021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11121201999965 and 11121202000010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121202000001) 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, 205871611 + ... + 205925623.

It is an arithmetic number, because the mean of its divisors is an integer number (709314008560).

Almost surely, 2^{11121202000021} is an apocalyptic number.

It is an amenable number.

11121202000021 is a deficient number, since it is larger than the sum of its proper divisors (227822136939).

11121202000021 is a wasteful number, since it uses less digits than its factorization.

11121202000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72916.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11121202000021 its reverse (12000020212111), we get a palindrome (23121222212132).

The spelling of 11121202000021 in words is "eleven trillion, one hundred twenty-one billion, two hundred two million, twenty-one", and thus it is an aban number.