121010211102 has 64 divisors (see below), whose sum is σ = 273843307008. Its totient is φ = 35325360000.

The previous prime is 121010211089. The next prime is 121010211131. The reversal of 121010211102 is 201112010121.

It is a congruent number.

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, 1327 + ... + 491957.

It is an arithmetic number, because the mean of its divisors is an integer number (4278801672).

Almost surely, 2^121010211102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121010211102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136921653504).

121010211102 is an abundant number, since it is smaller than the sum of its proper divisors (152833095906).

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

121010211102 is a wasteful number, since it uses less digits than its factorization.

121010211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490785.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121010211102 its reverse (201112010121), we get a palindrome (322122221223).

The spelling of 121010211102 in words is "one hundred twenty-one billion, ten million, two hundred eleven thousand, one hundred two".