7221825216620 has 24 divisors (see below), whose sum is σ = 17332380520224. Its totient is φ = 2476054359936.

The previous prime is 7221825216607. The next prime is 7221825216643. The reversal of 7221825216620 is 266125281227.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25792232777 + ... + 25792233056.

It is an arithmetic number, because the mean of its divisors is an integer number (722182521676).

Almost surely, 2^{7221825216620} is an apocalyptic number.

7221825216620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7221825216620 is an abundant number, since it is smaller than the sum of its proper divisors (10110555303604).

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

7221825216620 is a wasteful number, since it uses less digits than its factorization.

7221825216620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51584465849 (or 51584465847 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 7221825216620 in words is "seven trillion, two hundred twenty-one billion, eight hundred twenty-five million, two hundred sixteen thousand, six hundred twenty".