221030030122 has 16 divisors (see below), whose sum is σ = 361693501344. Its totient is φ = 100465974000.

The previous prime is 221030030087. The next prime is 221030030149.

221030030122 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 221030030096 and 221030030105.

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, 1311172 + ... + 1470112.

It is an arithmetic number, because the mean of its divisors is an integer number (22605843834).

Almost surely, 2^221030030122 is an apocalyptic number.

221030030122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221030030122 is a deficient number, since it is larger than the sum of its proper divisors (140663471222).

221030030122 is a wasteful number, since it uses less digits than its factorization.

221030030122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222165.

The product of its (nonzero) digits is 144, while the sum is 16.

It can be divided in two parts, 2210300 and 30122, that added together give a palindrome (2240422).

The spelling of 221030030122 in words is "two hundred twenty-one billion, thirty million, thirty thousand, one hundred twenty-two".