122121210112222 has 4 divisors (see below), whose sum is σ = 183181815168336. Its totient is φ = 61060605056110.

The previous prime is 122121210112201. The next prime is 122121210112289. The reversal of 122121210112222 is 222211012121221.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 122121210112193 and 122121210112202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30530302528054 + ... + 30530302528057.

It is an arithmetic number, because the mean of its divisors is an integer number (45795453792084).

Almost surely, 2^{122121210112222} is an apocalyptic number.

122121210112222 is a deficient number, since it is larger than the sum of its proper divisors (61060605056114).

122121210112222 is an equidigital number, since it uses as much as digits as its factorization.

122121210112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61060605056113.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 122121210112222 its reverse (222211012121221), we get a palindrome (344332222233443).

The spelling of 122121210112222 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred ten million, one hundred twelve thousand, two hundred twenty-two".