221223121322122 has 16 divisors (see below), whose sum is σ = 332659489044960. Its totient is φ = 110336677099792.

The previous prime is 221223121322117. The next prime is 221223121322167.

221223121322122 is nontrivially palindromic in base 10.

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, 4534768 + ... + 21517675.

It is an arithmetic number, because the mean of its divisors is an integer number (20791218065310).

Almost surely, 2^{221223121322122} is an apocalyptic number.

221223121322122 is a deficient number, since it is larger than the sum of its proper divisors (111436367722838).

221223121322122 is a wasteful number, since it uses less digits than its factorization.

221223121322122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26062997.

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

The spelling of 221223121322122 in words is "two hundred twenty-one trillion, two hundred twenty-three billion, one hundred twenty-one million, three hundred twenty-two thousand, one hundred twenty-two".