221215550006722 has 16 divisors (see below), whose sum is σ = 339346720465632. Its totient is φ = 108125180523360.

The previous prime is 221215550006687. The next prime is 221215550006723. The reversal of 221215550006722 is 227600055512122.

It is not an unprimeable number, because it can be changed into a prime (221215550006723) 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, 6300983643 + ... + 6301018750.

It is an arithmetic number, because the mean of its divisors is an integer number (21209170029102).

Almost surely, 2^{221215550006722} is an apocalyptic number.

221215550006722 is a deficient number, since it is larger than the sum of its proper divisors (118131170458910).

221215550006722 is a wasteful number, since it uses less digits than its factorization.

221215550006722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12602002593.

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 221215550006722 in words is "two hundred twenty-one trillion, two hundred fifteen billion, five hundred fifty million, six thousand, seven hundred twenty-two".