121002122100312 has 48 divisors (see below), whose sum is σ = 328004350245000. Its totient is φ = 40298315216256.

The previous prime is 121002122100287. The next prime is 121002122100317. The reversal of 121002122100312 is 213001221200121.

121002122100312 is a `hidden beast` number, since 1 + 210 + 0 + 21 + 22 + 100 + 312 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002122100317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 744199062 + ... + 744361637.

Almost surely, 2^{121002122100312} is an apocalyptic number.

121002122100312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121002122100312 is an abundant number, since it is smaller than the sum of its proper divisors (207002228144688).

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

121002122100312 is a wasteful number, since it uses less digits than its factorization.

121002122100312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488561840 (or 1488561833 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121002122100312 its reverse (213001221200121), we get a palindrome (334003343300433).

The spelling of 121002122100312 in words is "one hundred twenty-one trillion, two billion, one hundred twenty-two million, one hundred thousand, three hundred twelve".