121000221210121 has 8 divisors (see below), whose sum is σ = 132547960166688. Its totient is φ = 109543768728000.

The previous prime is 121000221210107. The next prime is 121000221210133. The reversal of 121000221210121 is 121012122000121.

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 121000221210121 - 2¹⁹ = 121000220685833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121000221210095 and 121000221210104.

It is not an unprimeable number, because it can be changed into a prime (121000221210221) 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, 22821615835 + ... + 22821621136.

It is an arithmetic number, because the mean of its divisors is an integer number (16568495020836).

Almost surely, 2^{121000221210121} is an apocalyptic number.

121000221210121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121000221210121 is a deficient number, since it is larger than the sum of its proper divisors (11547738956567).

121000221210121 is a wasteful number, since it uses less digits than its factorization.

121000221210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45643237223.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121000221210121 its reverse (121012122000121), we get a palindrome (242012343210242).

The spelling of 121000221210121 in words is "one hundred twenty-one trillion, two hundred twenty-one million, two hundred ten thousand, one hundred twenty-one".