121220505400030 has 8 divisors (see below), whose sum is σ = 218196909720072. Its totient is φ = 48488202160008.

The previous prime is 121220505399991. The next prime is 121220505400117. The reversal of 121220505400030 is 30004505022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121220505399968 and 121220505400004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6061025269992 + ... + 6061025270011.

It is an arithmetic number, because the mean of its divisors is an integer number (27274613715009).

Almost surely, 2^{121220505400030} is an apocalyptic number.

121220505400030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121220505400030 is a deficient number, since it is larger than the sum of its proper divisors (96976404320042).

121220505400030 is a wasteful number, since it uses less digits than its factorization.

121220505400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12122050540010.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 121220505400030 in words is "one hundred twenty-one trillion, two hundred twenty billion, five hundred five million, four hundred thousand, thirty".