11202201021 has 16 divisors (see below), whose sum is σ = 16297509888. Its totient is φ = 6787796400.

The previous prime is 11202201019. The next prime is 11202201047. The reversal of 11202201021 is 12010220211.

It is not a de Polignac number, because 11202201021 - 2¹ = 11202201019 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11202200988 and 11202201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202201071) 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, 137820 + ... + 203466.

It is an arithmetic number, because the mean of its divisors is an integer number (1018594368).

Almost surely, 2^11202201021 is an apocalyptic number.

11202201021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11202201021 is a deficient number, since it is larger than the sum of its proper divisors (5095308867).

11202201021 is a wasteful number, since it uses less digits than its factorization.

11202201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70832.

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

Adding to 11202201021 its reverse (12010220211), we get a palindrome (23212421232).

The spelling of 11202201021 in words is "eleven billion, two hundred two million, two hundred one thousand, twenty-one".