121122200222 has 32 divisors (see below), whose sum is σ = 190646058240. Its totient is φ = 57664031040.

The previous prime is 121122200207. The next prime is 121122200267. The reversal of 121122200222 is 222002221121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121122200222.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 431993 + ... + 654875.

It is an arithmetic number, because the mean of its divisors is an integer number (5957689320).

Almost surely, 2^121122200222 is an apocalyptic number.

121122200222 is a deficient number, since it is larger than the sum of its proper divisors (69523858018).

121122200222 is a wasteful number, since it uses less digits than its factorization.

121122200222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223088.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121122200222 its reverse (222002221121), we get a palindrome (343124421343).

The spelling of 121122200222 in words is "one hundred twenty-one billion, one hundred twenty-two million, two hundred thousand, two hundred twenty-two".