121120201021212 has 24 divisors (see below), whose sum is σ = 314015335981200. Its totient is φ = 40373400340368.

The previous prime is 121120201021207. The next prime is 121120201021243. The reversal of 121120201021212 is 212120102021121.

121120201021212 is a `hidden beast` number, since 1 + 211 + 20 + 201 + 0 + 21 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 560741671287 + ... + 560741671502.

It is an arithmetic number, because the mean of its divisors is an integer number (13083972332550).

Almost surely, 2^{121120201021212} is an apocalyptic number.

121120201021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121120201021212 is an abundant number, since it is smaller than the sum of its proper divisors (192895134959988).

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

121120201021212 is a wasteful number, since it uses less digits than its factorization.

121120201021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121483342802 (or 1121483342794 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 121120201021212 its reverse (212120102021121), we get a palindrome (333240303042333).

Subtracting 121120201021212 from its reverse (212120102021121), we obtain a palindrome (90999900999909).

The spelling of 121120201021212 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred one million, twenty-one thousand, two hundred twelve".