121000221010210 has 8 divisors (see below), whose sum is σ = 217800397818396. Its totient is φ = 48400088404080.

The previous prime is 121000221010187. The next prime is 121000221010219. The reversal of 121000221010210 is 12010122000121.

It can be written as a sum of positive squares in 2 ways, for example, as 110852702452921 + 10147518557289 = 10528661^2 + 3185517^2 .

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

It is not an unprimeable number, because it can be changed into a prime (121000221010219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6050011050501 + ... + 6050011050520.

Almost surely, 2^{121000221010210} is an apocalyptic number.

121000221010210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121000221010210 is a deficient number, since it is larger than the sum of its proper divisors (96800176808186).

121000221010210 is a wasteful number, since it uses less digits than its factorization.

121000221010210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12100022101028.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121000221010210 its reverse (12010122000121), we get a palindrome (133010343010331).

The spelling of 121000221010210 in words is "one hundred twenty-one trillion, two hundred twenty-one million, ten thousand, two hundred ten".