2221151555555 has 8 divisors (see below), whose sum is σ = 2665392424800. Its totient is φ = 1776914205696.

The previous prime is 2221151555533. The next prime is 2221151555587. The reversal of 2221151555555 is 5555551511222.

It is a happy number.

2221151555555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2221151555555 - 2²⁴ = 2221134778339 is a prime.

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, 800291 + ... + 2254499.

It is an arithmetic number, because the mean of its divisors is an integer number (333174053100).

Almost surely, 2^{2221151555555} is an apocalyptic number.

2221151555555 is a deficient number, since it is larger than the sum of its proper divisors (444240869245).

2221151555555 is a wasteful number, since it uses less digits than its factorization.

2221151555555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759693.

The product of its digits is 625000, while the sum is 44.

The spelling of 2221151555555 in words is "two trillion, two hundred twenty-one billion, one hundred fifty-one million, five hundred fifty-five thousand, five hundred fifty-five".