12012011112220 has 48 divisors (see below), whose sum is σ = 28830869803008. Its totient is φ = 4118111933760.

The previous prime is 12012011112131. The next prime is 12012011112221. The reversal of 12012011112220 is 2221111021021.

It is a super-2 number, since 2×12012011112220² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12012011112194 and 12012011112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012011112221) 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, 1053286 + ... + 5013325.

It is an arithmetic number, because the mean of its divisors is an integer number (600643120896).

Almost surely, 2^{12012011112220} is an apocalyptic number.

12012011112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012011112220 is an abundant number, since it is smaller than the sum of its proper divisors (16818858690788).

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

12012011112220 is a wasteful number, since it uses less digits than its factorization.

12012011112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080770 (or 6080768 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12012011112220 its reverse (2221111021021), we get a palindrome (14233122133241).

The spelling of 12012011112220 in words is "twelve trillion, twelve billion, eleven million, one hundred twelve thousand, two hundred twenty".