7221137050020 has 48 divisors (see below), whose sum is σ = 20219300414208. Its totient is φ = 1925625434880.

The previous prime is 7221137050013. The next prime is 7221137050031. The reversal of 7221137050020 is 200507311227.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 7221137050020.

It is an unprimeable number.

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, 19751280 + ... + 20113560.

It is an arithmetic number, because the mean of its divisors is an integer number (421235425296).

Almost surely, 2^{7221137050020} is an apocalyptic number.

It is an amenable number.

7221137050020 is an abundant number, since it is smaller than the sum of its proper divisors (12998163364188).

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

7221137050020 is a wasteful number, since it uses less digits than its factorization.

7221137050020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694500 (or 694498 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The spelling of 7221137050020 in words is "seven trillion, two hundred twenty-one billion, one hundred thirty-seven million, fifty thousand, twenty".