11101221221022 has 24 divisors (see below), whose sum is σ = 24054364939176. Its totient is φ = 3700142618256.

The previous prime is 11101221221021. The next prime is 11101221221029. The reversal of 11101221221022 is 22012212210111.

It is a super-2 number, since 2×11101221221022² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11101221220986 and 11101221221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101221221021) 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, 21779008 + ... + 22282899.

It is an arithmetic number, because the mean of its divisors is an integer number (1002265205799).

Almost surely, 2^{11101221221022} is an apocalyptic number.

11101221221022 is an abundant number, since it is smaller than the sum of its proper divisors (12953143718154).

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

11101221221022 is a wasteful number, since it uses less digits than its factorization.

11101221221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44075912 (or 44075909 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11101221221022 its reverse (22012212210111), we get a palindrome (33113433431133).

The spelling of 11101221221022 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, two hundred twenty-one thousand, twenty-two".