2221206015500 has 24 divisors (see below), whose sum is σ = 4851113938944. Its totient is φ = 888482406000.

The previous prime is 2221206015461. The next prime is 2221206015569. The reversal of 2221206015500 is 55106021222.

It is a self number, because there is not a number n which added to its sum of digits gives 2221206015500.

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, 2221205516 + ... + 2221206515.

It is an arithmetic number, because the mean of its divisors is an integer number (202129747456).

Almost surely, 2^{2221206015500} is an apocalyptic number.

2221206015500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221206015500 is an abundant number, since it is smaller than the sum of its proper divisors (2629907923444).

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

2221206015500 is a wasteful number, since it uses less digits than its factorization.

2221206015500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4442412050 (or 4442412038 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The spelling of 2221206015500 in words is "two trillion, two hundred twenty-one billion, two hundred six million, fifteen thousand, five hundred".