2221956783087 has 8 divisors (see below), whose sum is σ = 2962659572736. Its totient is φ = 1481279257752.

The previous prime is 2221956783061. The next prime is 2221956783119. The reversal of 2221956783087 is 7803876591222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221956783087 - 2¹¹ = 2221956781039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2221956783087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221956783047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6109903 + ... + 6463344.

It is an arithmetic number, because the mean of its divisors is an integer number (370332446592).

Almost surely, 2^{2221956783087} is an apocalyptic number.

2221956783087 is a deficient number, since it is larger than the sum of its proper divisors (740702789649).

2221956783087 is a wasteful number, since it uses less digits than its factorization.

2221956783087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12632157.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 2221956783087 in words is "two trillion, two hundred twenty-one billion, nine hundred fifty-six million, seven hundred eighty-three thousand, eighty-seven".