122002222121 has 8 divisors (see below), whose sum is σ = 131965809024. Its totient is φ = 112121321040.

The previous prime is 122002222109. The next prime is 122002222123. The reversal of 122002222121 is 121222200221.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122002222121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122002222121.

It is not an unprimeable number, because it can be changed into a prime (122002222123) 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 7 ways as a sum of consecutive naturals, for example, 20668385 + ... + 20674286.

It is an arithmetic number, because the mean of its divisors is an integer number (16495726128).

Almost surely, 2^122002222121 is an apocalyptic number.

It is an amenable number.

122002222121 is a deficient number, since it is larger than the sum of its proper divisors (9963586903).

122002222121 is a wasteful number, since it uses less digits than its factorization.

122002222121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41342911.

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

Adding to 122002222121 its reverse (121222200221), we get a palindrome (243224422342).

The spelling of 122002222121 in words is "one hundred twenty-two billion, two million, two hundred twenty-two thousand, one hundred twenty-one".