11100020212021 has 32 divisors (see below), whose sum is σ = 12850739475840. Its totient is φ = 9495980752896.

The previous prime is 11100020211983. The next prime is 11100020212063. The reversal of 11100020212021 is 12021202000111.

It is a cyclic number.

It is not a de Polignac number, because 11100020212021 - 2⁷ = 11100020211893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 11100020211992 and 11100020212010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100020219021) 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 31 ways as a sum of consecutive naturals, for example, 39944085 + ... + 40221013.

It is an arithmetic number, because the mean of its divisors is an integer number (401585608620).

Almost surely, 2^{11100020212021} is an apocalyptic number.

It is an amenable number.

11100020212021 is a deficient number, since it is larger than the sum of its proper divisors (1750719263819).

11100020212021 is a wasteful number, since it uses less digits than its factorization.

11100020212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279733.

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

Adding to 11100020212021 its reverse (12021202000111), we get a palindrome (23121222212132).

The spelling of 11100020212021 in words is "eleven trillion, one hundred billion, twenty million, two hundred twelve thousand, twenty-one".