12011012020220 has 24 divisors (see below), whose sum is σ = 26550658150800. Its totient is φ = 4551541396992.

The previous prime is 12011012020213. The next prime is 12011012020237. The reversal of 12011012020220 is 2202021011021.

It is a junction number, because it is equal to n+sod(n) for n = 12011012020195 and 12011012020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15803962805 + ... + 15803963564.

It is an arithmetic number, because the mean of its divisors is an integer number (1106277422950).

Almost surely, 2^{12011012020220} is an apocalyptic number.

12011012020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011012020220 is an abundant number, since it is smaller than the sum of its proper divisors (14539646130580).

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

12011012020220 is a wasteful number, since it uses less digits than its factorization.

12011012020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31607926397 (or 31607926395 counting only the distinct ones).

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

Adding to 12011012020220 its reverse (2202021011021), we get a palindrome (14213033031241).

The spelling of 12011012020220 in words is "twelve trillion, eleven billion, twelve million, twenty thousand, two hundred twenty".