11021222210201 has 12 divisors (see below), whose sum is σ = 12866889218148. Its totient is φ = 9412658049312.

The previous prime is 11021222210197. The next prime is 11021222210209. The reversal of 11021222210201 is 10201222212011.

It can be written as a sum of positive squares in 2 ways, for example, as 1207262550025 + 9813959660176 = 1098755^2 + 3132724^2 .

It is not a de Polignac number, because 11021222210201 - 2² = 11021222210197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11021222210201.

It is not an unprimeable number, because it can be changed into a prime (11021222210209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 405984446 + ... + 406011591.

It is an arithmetic number, because the mean of its divisors is an integer number (1072240768179).

Almost surely, 2^{11021222210201} is an apocalyptic number.

It is an amenable number.

11021222210201 is a deficient number, since it is larger than the sum of its proper divisors (1845667007947).

11021222210201 is an equidigital number, since it uses as much as digits as its factorization.

11021222210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811996328 (or 811996321 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11021222210201 its reverse (10201222212011), we get a palindrome (21222444422212).

The spelling of 11021222210201 in words is "eleven trillion, twenty-one billion, two hundred twenty-two million, two hundred ten thousand, two hundred one".