11222212220120 has 64 divisors (see below), whose sum is σ = 28743057411840. Its totient is φ = 3903378160000.

The previous prime is 11222212220111. The next prime is 11222212220129. The reversal of 11222212220120 is 2102221222211.

It is an interprime number because it is at equal distance from previous prime (11222212220111) and next prime (11222212220129).

It is a super-2 number, since 2×11222212220120² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11222212220092 and 11222212220101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222212220129) 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, 554447006 + ... + 554467245.

It is an arithmetic number, because the mean of its divisors is an integer number (449110272060).

Almost surely, 2^{11222212220120} is an apocalyptic number.

11222212220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222212220120 is an abundant number, since it is smaller than the sum of its proper divisors (17520845191720).

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

11222212220120 is a wasteful number, since it uses less digits than its factorization.

11222212220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108914296 (or 1108914292 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11222212220120 its reverse (2102221222211), we get a palindrome (13324433442331).

The spelling of 11222212220120 in words is "eleven trillion, two hundred twenty-two billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty".