11222213320021 has 16 divisors (see below), whose sum is σ = 12639571181568. Its totient is φ = 9871164903600.

The previous prime is 11222213320001. The next prime is 11222213320067. The reversal of 11222213320021 is 12002331222211.

It is not a de Polignac number, because 11222213320021 - 2¹⁵ = 11222213287253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11222213319974 and 11222213320001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222213320001) 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, 988285 + ... + 4839538.

It is an arithmetic number, because the mean of its divisors is an integer number (789973198848).

Almost surely, 2^{11222213320021} is an apocalyptic number.

11222213320021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11222213320021 is a deficient number, since it is larger than the sum of its proper divisors (1417357861547).

11222213320021 is a wasteful number, since it uses less digits than its factorization.

11222213320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5833512.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 11222213320021 its reverse (12002331222211), we get a palindrome (23224544542232).

The spelling of 11222213320021 in words is "eleven trillion, two hundred twenty-two billion, two hundred thirteen million, three hundred twenty thousand, twenty-one".