121021112210210 has 16 divisors (see below), whose sum is σ = 229303159977600. Its totient is φ = 45860631995376.

The previous prime is 121021112210203. The next prime is 121021112210213. The reversal of 121021112210210 is 12012211120121.

It is a super-2 number, since 2×121021112210210² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121021112210213) 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, 318476610890 + ... + 318476611269.

It is an arithmetic number, because the mean of its divisors is an integer number (14331447498600).

Almost surely, 2^{121021112210210} is an apocalyptic number.

121021112210210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121021112210210 is a deficient number, since it is larger than the sum of its proper divisors (108282047767390).

121021112210210 is a wasteful number, since it uses less digits than its factorization.

121021112210210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636953222185.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121021112210210 its reverse (12012211120121), we get a palindrome (133033323330331).

The spelling of 121021112210210 in words is "one hundred twenty-one trillion, twenty-one billion, one hundred twelve million, two hundred ten thousand, two hundred ten".