121100133012 has 48 divisors (see below), whose sum is σ = 299899438272. Its totient is φ = 37901928960.

The previous prime is 121100132987. The next prime is 121100133019. The reversal of 121100133012 is 210331001121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121100132982 and 121100133000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100133019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 619138 + ... + 790905.

It is an arithmetic number, because the mean of its divisors is an integer number (6247904964).

Almost surely, 2^121100133012 is an apocalyptic number.

121100133012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121100133012 is an abundant number, since it is smaller than the sum of its proper divisors (178799305260).

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

121100133012 is a wasteful number, since it uses less digits than its factorization.

121100133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410488 (or 1410486 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121100133012 its reverse (210331001121), we get a palindrome (331431134133).

The spelling of 121100133012 in words is "one hundred twenty-one billion, one hundred million, one hundred thirty-three thousand, twelve".