121280672488700 has 144 divisors (see below), whose sum is σ = 283674930309120. Its totient is φ = 44875350432000.

The previous prime is 121280672488699. The next prime is 121280672488711. The reversal of 121280672488700 is 7884276082121.

It is a happy number.

It is a super-2 number, since 2×121280672488700² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103443770 + ... + 104609630.

Almost surely, 2^{121280672488700} is an apocalyptic number.

121280672488700 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 121280672488700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141837465154560).

121280672488700 is an abundant number, since it is smaller than the sum of its proper divisors (162394257820420).

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

121280672488700 is a wasteful number, since it uses less digits than its factorization.

121280672488700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167388 (or 1167381 counting only the distinct ones).

The product of its (nonzero) digits is 4816896, while the sum is 56.

The spelling of 121280672488700 in words is "one hundred twenty-one trillion, two hundred eighty billion, six hundred seventy-two million, four hundred eighty-eight thousand, seven hundred".