221123321122 has 32 divisors (see below), whose sum is σ = 366953328000. Its totient is φ = 99096201600.

The previous prime is 221123321119. The next prime is 221123321141.

221123321122 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 221123321093 and 221123321102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521547 + ... + 845137.

It is an arithmetic number, because the mean of its divisors is an integer number (11467291500).

Almost surely, 2^221123321122 is an apocalyptic number.

221123321122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221123321122 is a deficient number, since it is larger than the sum of its proper divisors (145830006878).

221123321122 is a wasteful number, since it uses less digits than its factorization.

221123321122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324042.

The product of its digits is 576, while the sum is 22.

It can be divided in two parts, 221123 and 321122, that added together give a palindrome (542245).

The spelling of 221123321122 in words is "two hundred twenty-one billion, one hundred twenty-three million, three hundred twenty-one thousand, one hundred twenty-two".