221000110122 has 16 divisors (see below), whose sum is σ = 482182058592. Its totient is φ = 66969730320.

The previous prime is 221000110103. The next prime is 221000110127. The reversal of 221000110122 is 221011000122.

It is a super-2 number, since 2×221000110122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221000110098 and 221000110107.

It is not an unprimeable number, because it can be changed into a prime (221000110127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1674243193 + ... + 1674243324.

It is an arithmetic number, because the mean of its divisors is an integer number (30136378662).

Almost surely, 2^221000110122 is an apocalyptic number.

221000110122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221000110122 is an abundant number, since it is smaller than the sum of its proper divisors (261181948470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221000110122 is a wasteful number, since it uses less digits than its factorization.

221000110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3348486533.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221000110122 its reverse (221011000122), we get a palindrome (442011110244).

Subtracting 221000110122 from its reverse (221011000122), we obtain a square (10890000 = 3300²).

The spelling of 221000110122 in words is "two hundred twenty-one billion, one hundred ten thousand, one hundred twenty-two".