6212111656212 has 144 divisors (see below), whose sum is σ = 19598245535232. Its totient is φ = 1611830975040.

The previous prime is 6212111656181. The next prime is 6212111656217. The reversal of 6212111656212 is 2126561112126.

6212111656212 is a `hidden beast` number, since 6 + 2 + 1 + 2 + 11 + 16 + 5 + 621 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6212111656217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1441863 + ... + 3808305.

It is an arithmetic number, because the mean of its divisors is an integer number (136098927328).

Almost surely, 2^{6212111656212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6212111656212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9799122767616).

6212111656212 is an abundant number, since it is smaller than the sum of its proper divisors (13386133879020).

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

6212111656212 is a wasteful number, since it uses less digits than its factorization.

6212111656212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367418 (or 2367413 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

Adding to 6212111656212 its reverse (2126561112126), we get a palindrome (8338672768338).

The spelling of 6212111656212 in words is "six trillion, two hundred twelve billion, one hundred eleven million, six hundred fifty-six thousand, two hundred twelve".