121400121104000 has 64 divisors (see below), whose sum is σ = 301831051134600. Its totient is φ = 48560048435200.

The previous prime is 121400121103999. The next prime is 121400121104023. The reversal of 121400121104000 is 401121004121.

It can be written as a sum of positive squares in 4 ways, for example, as 46296266706496 + 75103854397504 = 6804136^2 + 8666248^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 121400121104000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3793737785 + ... + 3793769784.

Almost surely, 2^{121400121104000} is an apocalyptic number.

121400121104000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121400121104000 is an abundant number, since it is smaller than the sum of its proper divisors (180430930030600).

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

121400121104000 is an frugal number, since it uses more digits than its factorization.

121400121104000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7587507598 (or 7587507576 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121400121104000 its reverse (401121004121), we get a palindrome (121801242108121).

The spelling of 121400121104000 in words is "one hundred twenty-one trillion, four hundred billion, one hundred twenty-one million, one hundred four thousand".