121000011100100 has 36 divisors (see below), whose sum is σ = 286440026279568. Its totient is φ = 44000004036000.

The previous prime is 121000011100069. The next prime is 121000011100103. The reversal of 121000011100100 is 1001110000121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121000011100103) 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, 55000003946 + ... + 55000006145.

Almost surely, 2^{121000011100100} is an apocalyptic number.

121000011100100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121000011100100 is an abundant number, since it is smaller than the sum of its proper divisors (165440015179468).

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

121000011100100 is a wasteful number, since it uses less digits than its factorization.

121000011100100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110000010116 (or 110000010109 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 121000011100100 its reverse (1001110000121), we get a palindrome (122001121100221).

The spelling of 121000011100100 in words is "one hundred twenty-one trillion, eleven million, one hundred thousand, one hundred".