221000122 has 16 divisors (see below), whose sum is σ = 379213632. Its totient is φ = 94625280.

The previous prime is 221000107. The next prime is 221000137.

221000122 is nontrivially palindromic in base 10.

221000122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221000107) and next prime (221000137).

It is a junction number, because it is equal to n+sod(n) for n = 221000099 and 221000108.

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, 9297 + ... + 22987.

It is an arithmetic number, because the mean of its divisors is an integer number (23700852).

Almost surely, 2^221000122 is an apocalyptic number.

221000122 is a deficient number, since it is larger than the sum of its proper divisors (158213510).

221000122 is a wasteful number, since it uses less digits than its factorization.

221000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14853.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 221000122 is about 14866.0728506220. The cubic root of 221000122 is about 604.5944708539.

It can be divided in two parts, 221000 and 122, that added together give a palindrome (221122).

The spelling of 221000122 in words is "two hundred twenty-one million, one hundred twenty-two", and thus it is an aban number.