121750920100 has 36 divisors (see below), whose sum is σ = 266100242800. Its totient is φ = 48350000160.

The previous prime is 121750920089. The next prime is 121750920113. The reversal of 121750920100 is 1029057121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4365630 + ... + 4393429.

Almost surely, 2^121750920100 is an apocalyptic number.

121750920100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121750920100 is an abundant number, since it is smaller than the sum of its proper divisors (144349322700).

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

121750920100 is a wasteful number, since it uses less digits than its factorization.

121750920100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8759212 (or 8759205 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

Adding to 121750920100 its reverse (1029057121), we get a palindrome (122779977221).

The spelling of 121750920100 in words is "one hundred twenty-one billion, seven hundred fifty million, nine hundred twenty thousand, one hundred".