121126100 has 18 divisors (see below), whose sum is σ = 262843854. Its totient is φ = 48450400.

The previous prime is 121126099. The next prime is 121126111. The reversal of 121126100 is 1621121.

It can be written as a sum of positive squares in 3 ways, for example, as 258064 + 120868036 = 508^2 + 10994^2 .

It is a super-3 number, since 3×121126100³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605531 + ... + 605730.

Almost surely, 2^121126100 is an apocalyptic number.

121126100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121126100 is an abundant number, since it is smaller than the sum of its proper divisors (141717754).

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

121126100 is a wasteful number, since it uses less digits than its factorization.

121126100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211275 (or 1211268 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 121126100 is about 11005.7303256077. The cubic root of 121126100 is about 494.7805033025.

Adding to 121126100 its reverse (1621121), we get a palindrome (122747221).

The spelling of 121126100 in words is "one hundred twenty-one million, one hundred twenty-six thousand, one hundred".