121222002201221 has 8 divisors (see below), whose sum is σ = 121891001105664. Its totient is φ = 120554122962240.

The previous prime is 121222002201197. The next prime is 121222002201233. The reversal of 121222002201221 is 122102200222121.

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-121222002201221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121222002201193 and 121222002201202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121222002201281) 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, 279699236 + ... + 280132301.

It is an arithmetic number, because the mean of its divisors is an integer number (15236375138208).

Almost surely, 2^{121222002201221} is an apocalyptic number.

It is an amenable number.

121222002201221 is a deficient number, since it is larger than the sum of its proper divisors (668998904443).

121222002201221 is an equidigital number, since it uses as much as digits as its factorization.

121222002201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559832731.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121222002201221 its reverse (122102200222121), we get a palindrome (243324202423342).

The spelling of 121222002201221 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two million, two hundred one thousand, two hundred twenty-one".