7220055020500 has 96 divisors (see below), whose sum is σ = 18642680259840. Its totient is φ = 2390087145600.

The previous prime is 7220055020473. The next prime is 7220055020509. The reversal of 7220055020500 is 50205500227.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7220055020509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35465274 + ... + 35668273.

It is an arithmetic number, because the mean of its divisors is an integer number (194194586040).

Almost surely, 2^{7220055020500} is an apocalyptic number.

7220055020500 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7220055020500 is an abundant number, since it is smaller than the sum of its proper divisors (11422625239340).

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

7220055020500 is a wasteful number, since it uses less digits than its factorization.

7220055020500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71133602 (or 71133590 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The spelling of 7220055020500 in words is "seven trillion, two hundred twenty billion, fifty-five million, twenty thousand, five hundred".