11021222020211 has 16 divisors (see below), whose sum is σ = 12093450284160. Its totient is φ = 9981072716160.

The previous prime is 11021222020199. The next prime is 11021222020223. The reversal of 11021222020211 is 11202022212011.

It is an interprime number because it is at equal distance from previous prime (11021222020199) and next prime (11021222020223).

It is not a de Polignac number, because 11021222020211 - 2¹⁰ = 11021222019187 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021222020211.

It is not an unprimeable number, because it can be changed into a prime (11021222020261) 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, 17065766 + ... + 17699796.

It is an arithmetic number, because the mean of its divisors is an integer number (755840642760).

Almost surely, 2^{11021222020211} is an apocalyptic number.

11021222020211 is a deficient number, since it is larger than the sum of its proper divisors (1072228263949).

11021222020211 is a wasteful number, since it uses less digits than its factorization.

11021222020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659326.

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

Adding to 11021222020211 its reverse (11202022212011), we get a palindrome (22223244232222).

The spelling of 11021222020211 in words is "eleven trillion, twenty-one billion, two hundred twenty-two million, twenty thousand, two hundred eleven".