121022100120012 has 48 divisors (see below), whose sum is σ = 347550646501632. Its totient is φ = 31917916514880.

The previous prime is 121022100119873. The next prime is 121022100120043. The reversal of 121022100120012 is 210021001220121.

It is a junction number, because it is equal to n+sod(n) for n = 121022100119973 and 121022100120000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55413048414 + ... + 55413050597.

It is an arithmetic number, because the mean of its divisors is an integer number (7240638468784).

Almost surely, 2^{121022100120012} is an apocalyptic number.

121022100120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121022100120012 is an abundant number, since it is smaller than the sum of its proper divisors (226528546381620).

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

121022100120012 is a wasteful number, since it uses less digits than its factorization.

121022100120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110826099038 (or 110826099036 counting only the distinct ones).

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

Adding to 121022100120012 its reverse (210021001220121), we get a palindrome (331043101340133).

The spelling of 121022100120012 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred million, one hundred twenty thousand, twelve".