2196181840212 has 480 divisors, whose sum is σ = 6157069535232. Its totient is φ = 681734237184.

The previous prime is 2196181840211. The next prime is 2196181840213. The reversal of 2196181840212 is 2120481816912.

2196181840212 is a `hidden beast` number, since 2 + 1 + 9 + 618 + 1 + 8 + 4 + 0 + 21 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (2196181840211) and next prime (2196181840213).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2196181840211) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 4957520863 + ... + 4957521305.

Almost surely, 2^{2196181840212} 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 2196181840212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3078534767616).

2196181840212 is an abundant number, since it is smaller than the sum of its proper divisors (3960887695020).

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

2196181840212 is a wasteful number, since it uses less digits than its factorization.

2196181840212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The spelling of 2196181840212 in words is "two trillion, one hundred ninety-six billion, one hundred eighty-one million, eight hundred forty thousand, two hundred twelve".