121272710000 has 300 divisors, whose sum is σ = 322619516208. Its totient is φ = 44119296000.

The previous prime is 121272709979. The next prime is 121272710003. The reversal of 121272710000 is 17272121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121272710003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 123369509 + ... + 123370491.

Almost surely, 2^121272710000 is an apocalyptic number.

121272710000 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 121272710000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161309758104).

121272710000 is an abundant number, since it is smaller than the sum of its proper divisors (201346806208).

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

121272710000 is an equidigital number, since it uses as much as digits as its factorization.

121272710000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 23.

Adding to 121272710000 its reverse (17272121), we get a palindrome (121289982121).

The spelling of 121272710000 in words is "one hundred twenty-one billion, two hundred seventy-two million, seven hundred ten thousand".