221312222213122 has 8 divisors (see below), whose sum is σ = 335255148501372. Its totient is φ = 109560506046000.

The previous prime is 221312222213119. The next prime is 221312222213167.

221312222213122 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 221276900393641 + 35321819481 = 14875379^2 + 187941^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 547802530029 + ... + 547802530432.

Almost surely, 2^{221312222213122} is an apocalyptic number.

221312222213122 is a deficient number, since it is larger than the sum of its proper divisors (113942926288250).

221312222213122 is a wasteful number, since it uses less digits than its factorization.

221312222213122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095605060564.

The product of its digits is 4608, while the sum is 28.

The spelling of 221312222213122 in words is "two hundred twenty-one trillion, three hundred twelve billion, two hundred twenty-two million, two hundred thirteen thousand, one hundred twenty-two".