121222102120121 has 8 divisors (see below), whose sum is σ = 121467340606080. Its totient is φ = 120976914994992.

The previous prime is 121222102120117. The next prime is 121222102120211. The reversal of 121222102120121 is 121021201222121.

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

It is a cyclic number.

It is not a de Polignac number, because 121222102120121 - 2² = 121222102120117 is a prime.

It is a super-2 number, since 2×121222102120121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121222102120093 and 121222102120102.

It is not an unprimeable number, because it can be changed into a prime (121222102120421) 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, 8113265 + ... + 17557598.

It is an arithmetic number, because the mean of its divisors is an integer number (15183417575760).

Almost surely, 2^{121222102120121} is an apocalyptic number.

It is an amenable number.

121222102120121 is a deficient number, since it is larger than the sum of its proper divisors (245238485959).

121222102120121 is an equidigital number, since it uses as much as digits as its factorization.

121222102120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25680415.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121222102120121 its reverse (121021201222121), we get a palindrome (242243303342242).

The spelling of 121222102120121 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred two million, one hundred twenty thousand, one hundred twenty-one".