121121011000212 has 24 divisors (see below), whose sum is σ = 283226093410176. Its totient is φ = 40286470179648.

The previous prime is 121121011000169. The next prime is 121121011000259. The reversal of 121121011000212 is 212000110121121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121121011000191 and 121121011000200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10900013433 + ... + 10900024544.

It is an arithmetic number, because the mean of its divisors is an integer number (11801087225424).

Almost surely, 2^{121121011000212} is an apocalyptic number.

121121011000212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121121011000212 is an abundant number, since it is smaller than the sum of its proper divisors (162105082409964).

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

121121011000212 is a wasteful number, since it uses less digits than its factorization.

121121011000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21800038447 (or 21800038445 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121121011000212 its reverse (212000110121121), we get a palindrome (333121121121333).

The spelling of 121121011000212 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, eleven million, two hundred twelve", and thus it is an aban number.