11221212221122 has 8 divisors (see below), whose sum is σ = 16860492640656. Its totient is φ = 5601048007572.

The previous prime is 11221212221111. The next prime is 11221212221189. The reversal of 11221212221122 is 22112221212211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11221212221122² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11221212221093 and 11221212221102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4779050028 + ... + 4779052375.

It is an arithmetic number, because the mean of its divisors is an integer number (2107561580082).

Almost surely, 2^{11221212221122} is an apocalyptic number.

11221212221122 is a deficient number, since it is larger than the sum of its proper divisors (5639280419534).

11221212221122 is an equidigital number, since it uses as much as digits as its factorization.

11221212221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9558102992.

The product of its digits is 256, while the sum is 22.

Adding to 11221212221122 its reverse (22112221212211), we get a palindrome (33333433433333).

The spelling of 11221212221122 in words is "eleven trillion, two hundred twenty-one billion, two hundred twelve million, two hundred twenty-one thousand, one hundred twenty-two".