12212011120020 has 96 divisors (see below), whose sum is σ = 34678329348096. Its totient is φ = 3210382761600.

The previous prime is 12212011119983. The next prime is 12212011120061. The reversal of 12212011120020 is 2002111021221.

12212011120020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49851877 + ... + 50096243.

It is an arithmetic number, because the mean of its divisors is an integer number (361232597376).

Almost surely, 2^{12212011120020} is an apocalyptic number.

12212011120020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12212011120020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17339164674048).

12212011120020 is an abundant number, since it is smaller than the sum of its proper divisors (22466318228076).

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

12212011120020 is a wasteful number, since it uses less digits than its factorization.

12212011120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256181 (or 256179 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12212011120020 its reverse (2002111021221), we get a palindrome (14214122141241).

The spelling of 12212011120020 in words is "twelve trillion, two hundred twelve billion, eleven million, one hundred twenty thousand, twenty".