11200212021 has 24 divisors (see below), whose sum is σ = 15705316704. Its totient is φ = 7095936960.

The previous prime is 11200211999. The next prime is 11200212097. The reversal of 11200212021 is 12021200211.

It is not a de Polignac number, because 11200212021 - 2¹⁵ = 11200179253 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11200211988 and 11200212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200212421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144891 + ... + 208311.

It is an arithmetic number, because the mean of its divisors is an integer number (654388196).

Almost surely, 2^11200212021 is an apocalyptic number.

It is an amenable number.

11200212021 is a deficient number, since it is larger than the sum of its proper divisors (4505104683).

11200212021 is an equidigital number, since it uses as much as digits as its factorization.

11200212021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63541 (or 63504 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11200212021 its reverse (12021200211), we get a palindrome (23221412232).

The spelling of 11200212021 in words is "eleven billion, two hundred million, two hundred twelve thousand, twenty-one".