11001221111022 has 16 divisors (see below), whose sum is σ = 22002556364112. Its totient is φ = 3667054680000.

The previous prime is 11001221111021. The next prime is 11001221111039. The reversal of 11001221111022 is 22011112210011.

It is a happy number.

It is a super-2 number, since 2×11001221111022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11001221110992 and 11001221111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001221111021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3476479 + ... + 5838522.

It is an arithmetic number, because the mean of its divisors is an integer number (1375159772757).

Almost surely, 2^{11001221111022} is an apocalyptic number.

11001221111022 is an abundant number, since it is smaller than the sum of its proper divisors (11001335253090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11001221111022 is a wasteful number, since it uses less digits than its factorization.

11001221111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9511843.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11001221111022 its reverse (22011112210011), we get a palindrome (33012333321033).

The spelling of 11001221111022 in words is "eleven trillion, one billion, two hundred twenty-one million, one hundred eleven thousand, twenty-two".