121121002102210 has 64 divisors (see below), whose sum is σ = 238107289633920. Its totient is φ = 43994066321920.

The previous prime is 121121002102171. The next prime is 121121002102229. The reversal of 121121002102210 is 12201200121121.

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 31 ways as a sum of consecutive naturals, for example, 1614284976 + ... + 1614360004.

It is an arithmetic number, because the mean of its divisors is an integer number (3720426400530).

Almost surely, 2^{121121002102210} is an apocalyptic number.

121121002102210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121121002102210 is a deficient number, since it is larger than the sum of its proper divisors (116986287531710).

121121002102210 is a wasteful number, since it uses less digits than its factorization.

121121002102210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91491.

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

Adding to 121121002102210 its reverse (12201200121121), we get a palindrome (133322202223331).

The spelling of 121121002102210 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two million, one hundred two thousand, two hundred ten".