121010201210 has 64 divisors (see below), whose sum is σ = 232653606912. Its totient is φ = 45157948416.

The previous prime is 121010201209. The next prime is 121010201237. The reversal of 121010201210 is 12102010121.

It is a junction number, because it is equal to n+sod(n) for n = 121010201191 and 121010201200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37197944 + ... + 37201196.

It is an arithmetic number, because the mean of its divisors is an integer number (3635212608).

Almost surely, 2^121010201210 is an apocalyptic number.

121010201210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121010201210 is a deficient number, since it is larger than the sum of its proper divisors (111643405702).

121010201210 is a wasteful number, since it uses less digits than its factorization.

121010201210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5127.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121010201210 its reverse (12102010121), we get a palindrome (133112211331).

The spelling of 121010201210 in words is "one hundred twenty-one billion, ten million, two hundred one thousand, two hundred ten".