221122100122 has 32 divisors (see below), whose sum is σ = 413604998784. Its totient is φ = 86135227200.

The previous prime is 221122100099. The next prime is 221122100123. The reversal of 221122100122 is 221001221122.

It is a happy number.

221122100122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 221122100096 and 221122100105.

It is not an unprimeable number, because it can be changed into a prime (221122100123) 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, 700972 + ... + 966232.

It is an arithmetic number, because the mean of its divisors is an integer number (12925156212).

Almost surely, 2^221122100122 is an apocalyptic number.

221122100122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221122100122 is a deficient number, since it is larger than the sum of its proper divisors (192482898662).

221122100122 is a wasteful number, since it uses less digits than its factorization.

221122100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270694.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221122100122 its reverse (221001221122), we get a palindrome (442123321244).

The spelling of 221122100122 in words is "two hundred twenty-one billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-two".