121222121102210 has 8 divisors (see below), whose sum is σ = 218199817983996. Its totient is φ = 48488848440880.

The previous prime is 121222121102053. The next prime is 121222121102239. The reversal of 121222121102210 is 12201121222121.

It can be written as a sum of positive squares in 2 ways, for example, as 117132112372081 + 4090008730129 = 10822759^2 + 2022377^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061106055101 + ... + 6061106055120.

Almost surely, 2^{121222121102210} is an apocalyptic number.

121222121102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121222121102210 is a deficient number, since it is larger than the sum of its proper divisors (96977696881786).

121222121102210 is a wasteful number, since it uses less digits than its factorization.

121222121102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12122212110228.

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

Adding to 121222121102210 its reverse (12201121222121), we get a palindrome (133423242324331).

The spelling of 121222121102210 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred two thousand, two hundred ten".