121210102122 has 32 divisors (see below), whose sum is σ = 249724434624. Its totient is φ = 39192595200.

The previous prime is 121210102109. The next prime is 121210102129. The reversal of 121210102122 is 221201012121.

It is not an unprimeable number, because it can be changed into a prime (121210102129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 751279 + ... + 898242.

It is an arithmetic number, because the mean of its divisors is an integer number (7803888582).

Almost surely, 2^121210102122 is an apocalyptic number.

121210102122 is an abundant number, since it is smaller than the sum of its proper divisors (128514332502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121210102122 is a wasteful number, since it uses less digits than its factorization.

121210102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1649894.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121210102122 its reverse (221201012121), we get a palindrome (342411114243).

Subtracting 121210102122 from its reverse (221201012121), we obtain a palindrome (99990909999).

The spelling of 121210102122 in words is "one hundred twenty-one billion, two hundred ten million, one hundred two thousand, one hundred twenty-two".