121000010112212 has 144 divisors (see below), whose sum is σ = 274612928077824. Its totient is φ = 45616763649600.

The previous prime is 121000010112197. The next prime is 121000010112301. The reversal of 121000010112212 is 212211010000121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 958527443 + ... + 958653669.

Almost surely, 2^{121000010112212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121000010112212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137306464038912).

121000010112212 is an abundant number, since it is smaller than the sum of its proper divisors (153612917965612).

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

121000010112212 is a wasteful number, since it uses less digits than its factorization.

121000010112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135418 (or 135405 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121000010112212 its reverse (212211010000121), we get a palindrome (333211020112333).

The spelling of 121000010112212 in words is "one hundred twenty-one trillion, ten million, one hundred twelve thousand, two hundred twelve".