12020020211262 has 128 divisors (see below), whose sum is σ = 28988087500800. Its totient is φ = 3245925384576.

The previous prime is 12020020211261. The next prime is 12020020211299. The reversal of 12020020211262 is 26211202002021.

It is a super-2 number, since 2×12020020211262² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020020211261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 952527189 + ... + 952539807.

It is an arithmetic number, because the mean of its divisors is an integer number (226469433600).

Almost surely, 2^{12020020211262} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020020211262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14494043750400).

12020020211262 is an abundant number, since it is smaller than the sum of its proper divisors (16968067289538).

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

12020020211262 is a wasteful number, since it uses less digits than its factorization.

12020020211262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15350.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12020020211262 its reverse (26211202002021), we get a palindrome (38231222213283).

The spelling of 12020020211262 in words is "twelve trillion, twenty billion, twenty million, two hundred eleven thousand, two hundred sixty-two".