11302120221 has 16 divisors (see below), whose sum is σ = 17588711424. Its totient is φ = 6320942064.

The previous prime is 11302120153. The next prime is 11302120241. The reversal of 11302120221 is 12202120311.

It is not a de Polignac number, because 11302120221 - 2¹⁵ = 11302087453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11302120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11302120241) 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, 5724505 + ... + 5726478.

It is an arithmetic number, because the mean of its divisors is an integer number (1099294464).

Almost surely, 2^11302120221 is an apocalyptic number.

It is an amenable number.

11302120221 is a deficient number, since it is larger than the sum of its proper divisors (6286591203).

11302120221 is a wasteful number, since it uses less digits than its factorization.

11302120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11451040.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11302120221 its reverse (12202120311), we get a palindrome (23504240532).

The spelling of 11302120221 in words is "eleven billion, three hundred two million, one hundred twenty thousand, two hundred twenty-one".