11101221122222 has 32 divisors (see below), whose sum is σ = 20993991816960. Its totient is φ = 4276553878080.

The previous prime is 11101221122219. The next prime is 11101221122249. The reversal of 11101221122222 is 22222112210111.

It is a super-2 number, since 2×11101221122222² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101221122194 and 11101221122203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 404962988 + ... + 404990399.

It is an arithmetic number, because the mean of its divisors is an integer number (656062244280).

Almost surely, 2^{11101221122222} is an apocalyptic number.

11101221122222 is a deficient number, since it is larger than the sum of its proper divisors (9892770694738).

11101221122222 is a wasteful number, since it uses less digits than its factorization.

11101221122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809953496.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11101221122222 its reverse (22222112210111), we get a palindrome (33323333332333).

The spelling of 11101221122222 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".