121260111700 has 216 divisors, whose sum is σ = 331991278976. Its totient is φ = 37436083200.

The previous prime is 121260111613. The next prime is 121260111703. The reversal of 121260111700 is 7111062121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121260111703) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15293137 + ... + 15301063.

Almost surely, 2^121260111700 is an apocalyptic number.

121260111700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121260111700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165995639488).

121260111700 is an abundant number, since it is smaller than the sum of its proper divisors (210731167276).

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

121260111700 is a wasteful number, since it uses less digits than its factorization.

121260111700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8043 (or 7995 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 121260111700 its reverse (7111062121), we get a palindrome (128371173821).

The spelling of 121260111700 in words is "one hundred twenty-one billion, two hundred sixty million, one hundred eleven thousand, seven hundred".