11212022120 has 64 divisors (see below), whose sum is σ = 27436706640. Its totient is φ = 4098816000.

The previous prime is 11212022117. The next prime is 11212022183. The reversal of 11212022120 is 2122021211.

It can be written as a sum of positive squares in 8 ways, for example, as 6822429604 + 4389592516 = 82598^2 + 66254^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11212022095 and 11212022104.

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, 54221 + ... + 159260.

Almost surely, 2^11212022120 is an apocalyptic number.

11212022120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212022120 is an abundant number, since it is smaller than the sum of its proper divisors (16224684520).

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

11212022120 is a wasteful number, since it uses less digits than its factorization.

11212022120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213606 (or 213602 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11212022120 its reverse (2122021211), we get a palindrome (13334043331).

Subtracting from 11212022120 its reverse (2122021211), we obtain a palindrome (9090000909).

The spelling of 11212022120 in words is "eleven billion, two hundred twelve million, twenty-two thousand, one hundred twenty".