121222 has 4 divisors (see below), whose sum is σ = 181836. Its totient is φ = 60610.

The previous prime is 121189. The next prime is 121229. The reversal of 121222 is 222121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222121 = 151 ⋅1471.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 121199 and 121208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121229) by changing a digit.

121222 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30304 + ... + 30307.

It is an arithmetic number, because the mean of its divisors is an integer number (45459).

2¹²¹²²² is an apocalyptic number.

121222 is a deficient number, since it is larger than the sum of its proper divisors (60614).

121222 is an equidigital number, since it uses as much as digits as its factorization.

121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60613.

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

The square root of 121222 is about 348.1694989513. The cubic root of 121222 is about 49.4911047513.

Adding to 121222 its reverse (222121), we get a palindrome (343343).

It can be divided in two parts, 121 and 222, that multiplied together give a palindrome (26862).

The spelling of 121222 in words is "one hundred twenty-one thousand, two hundred twenty-two", and thus it is an iban number.