11202202001221 has 8 divisors (see below), whose sum is σ = 13966381715904. Its totient is φ = 8728988572320.

The previous prime is 11202202001197. The next prime is 11202202001251. The reversal of 11202202001221 is 12210020220211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11202202001221 - 2¹¹ = 11202201999173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11202202001195 and 11202202001204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202202001251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72741571360 + ... + 72741571513.

It is an arithmetic number, because the mean of its divisors is an integer number (1745797714488).

Almost surely, 2^{11202202001221} is an apocalyptic number.

11202202001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11202202001221 is a deficient number, since it is larger than the sum of its proper divisors (2764179714683).

11202202001221 is a wasteful number, since it uses less digits than its factorization.

11202202001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145483142891.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11202202001221 its reverse (12210020220211), we get a palindrome (23412222221432).

The spelling of 11202202001221 in words is "eleven trillion, two hundred two billion, two hundred two million, one thousand, two hundred twenty-one".