121222111222002 has 16 divisors (see below), whose sum is σ = 277079111364672. Its totient is φ = 34634888920560.

The previous prime is 121222111221997. The next prime is 121222111222021. The reversal of 121222111222002 is 200222111222121.

121222111222002 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 121222111222002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443120371649 + ... + 1443120371732.

It is an arithmetic number, because the mean of its divisors is an integer number (17317444460292).

Almost surely, 2^{121222111222002} is an apocalyptic number.

121222111222002 is an abundant number, since it is smaller than the sum of its proper divisors (155857000142670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121222111222002 is a wasteful number, since it uses less digits than its factorization.

121222111222002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886240743393.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 121222111222002 its reverse (200222111222121), we get a palindrome (321444222444123).

The spelling of 121222111222002 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, two".