11220221202201 has 24 divisors (see below), whose sum is σ = 18111576581280. Its totient is φ = 6634277131200.

The previous prime is 11220221202193. The next prime is 11220221202217. The reversal of 11220221202201 is 10220212202211.

It is a happy number.

11220221202201 is a `hidden beast` number, since 1 + 1 + 220 + 221 + 2 + 0 + 220 + 1 = 666.

It is not a de Polignac number, because 11220221202201 - 2³ = 11220221202193 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11220221202251) 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, 1382137011 + ... + 1382145128.

It is an arithmetic number, because the mean of its divisors is an integer number (754649024220).

Almost surely, 2^{11220221202201} is an apocalyptic number.

11220221202201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11220221202201 is a deficient number, since it is larger than the sum of its proper divisors (6891355379079).

11220221202201 is a wasteful number, since it uses less digits than its factorization.

11220221202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764282197 (or 2764282194 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11220221202201 its reverse (10220212202211), we get a palindrome (21440433404412).

The spelling of 11220221202201 in words is "eleven trillion, two hundred twenty billion, two hundred twenty-one million, two hundred two thousand, two hundred one".