221243343342122 has 32 divisors (see below), whose sum is σ = 339322768417152. Its totient is φ = 108164128875264.

The previous prime is 221243343342113. The next prime is 221243343342127.

221243343342122 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (221243343342127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7417973 + ... + 22304999.

It is an arithmetic number, because the mean of its divisors is an integer number (10603836513036).

Almost surely, 2^{221243343342122} is an apocalyptic number.

221243343342122 is a deficient number, since it is larger than the sum of its proper divisors (118079425075030).

221243343342122 is a wasteful number, since it uses less digits than its factorization.

221243343342122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14887982.

The product of its digits is 331776, while the sum is 38.

The spelling of 221243343342122 in words is "two hundred twenty-one trillion, two hundred forty-three billion, three hundred forty-three million, three hundred forty-two thousand, one hundred twenty-two".