121201121002222 has 16 divisors (see below), whose sum is σ = 191370413005200. Its totient is φ = 57410990732160.

The previous prime is 121201121002163. The next prime is 121201121002223. The reversal of 121201121002222 is 222200121102121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 121201121002222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201121002223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50838022 + ... + 53168662.

It is an arithmetic number, because the mean of its divisors is an integer number (11960650812825).

Almost surely, 2^{121201121002222} is an apocalyptic number.

121201121002222 is a deficient number, since it is larger than the sum of its proper divisors (70169292002978).

121201121002222 is a wasteful number, since it uses less digits than its factorization.

121201121002222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699171.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121201121002222 its reverse (222200121102121), we get a palindrome (343401242104343).

The spelling of 121201121002222 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred twenty-one million, two thousand, two hundred twenty-two".