121220002222 has 64 divisors (see below), whose sum is σ = 211006301184. Its totient is φ = 51618032640.

The previous prime is 121220002213. The next prime is 121220002229. The reversal of 121220002222 is 222200022121.

It is a junction number, because it is equal to n+sod(n) for n = 121220002196 and 121220002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220002229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109899723 + ... + 109900825.

It is an arithmetic number, because the mean of its divisors is an integer number (3296973456).

Almost surely, 2^121220002222 is an apocalyptic number.

121220002222 is a deficient number, since it is larger than the sum of its proper divisors (89786298962).

121220002222 is a wasteful number, since it uses less digits than its factorization.

121220002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 121220002222 its reverse (222200022121), we get a palindrome (343420024343).

The spelling of 121220002222 in words is "one hundred twenty-one billion, two hundred twenty million, two thousand, two hundred twenty-two".