7212211702480 has 80 divisors (see below), whose sum is σ = 16953587200080. Its totient is φ = 2853179764736.

The previous prime is 7212211702429. The next prime is 7212211702483. The reversal of 7212211702480 is 842071122127.

It can be written as a sum of positive squares in 8 ways, for example, as 2028357033616 + 5183854668864 = 1424204^2 + 2276808^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212211702483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1725102 + ... + 4171378.

It is an arithmetic number, because the mean of its divisors is an integer number (211919840001).

Almost surely, 2^{7212211702480} 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 7212211702480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8476793600040).

7212211702480 is an abundant number, since it is smaller than the sum of its proper divisors (9741375497600).

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

7212211702480 is a wasteful number, since it uses less digits than its factorization.

7212211702480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446696 (or 2446690 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 37.

The spelling of 7212211702480 in words is "seven trillion, two hundred twelve billion, two hundred eleven million, seven hundred two thousand, four hundred eighty".