121002221222 has 8 divisors (see below), whose sum is σ = 181518739776. Its totient is φ = 60495974632.

The previous prime is 121002221173. The next prime is 121002221251. The reversal of 121002221222 is 222122200121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 121002221222.

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 3 ways as a sum of consecutive naturals, for example, 2538473 + ... + 2585700.

It is an arithmetic number, because the mean of its divisors is an integer number (22689842472).

Almost surely, 2^121002221222 is an apocalyptic number.

121002221222 is a deficient number, since it is larger than the sum of its proper divisors (60516518554).

121002221222 is a wasteful number, since it uses less digits than its factorization.

121002221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5135982.

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

Adding to 121002221222 its reverse (222122200121), we get a palindrome (343124421343).

It can be divided in two parts, 12100 and 2221222, that added together give a palindrome (2233322).

The spelling of 121002221222 in words is "one hundred twenty-one billion, two million, two hundred twenty-one thousand, two hundred twenty-two".