12211001120020 has 24 divisors (see below), whose sum is σ = 26025835225824. Its totient is φ = 4811498948256.

The previous prime is 12211001120009. The next prime is 12211001120029. The reversal of 12211001120020 is 2002110011221.

It is a super-3 number, since 3×12211001120020³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211001120029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4556342362 + ... + 4556345041.

It is an arithmetic number, because the mean of its divisors is an integer number (1084409801076).

Almost surely, 2^{12211001120020} is an apocalyptic number.

12211001120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12211001120020 is an abundant number, since it is smaller than the sum of its proper divisors (13814834105804).

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

12211001120020 is a wasteful number, since it uses less digits than its factorization.

12211001120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9112687479 (or 9112687477 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211001120020 its reverse (2002110011221), we get a palindrome (14213111131241).

The spelling of 12211001120020 in words is "twelve trillion, two hundred eleven billion, one million, one hundred twenty thousand, twenty".