121204001420 has 12 divisors (see below), whose sum is σ = 254528403024. Its totient is φ = 48481600560.

The previous prime is 121204001389. The next prime is 121204001447. The reversal of 121204001420 is 24100402121.

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, 3030100016 + ... + 3030100055.

It is an arithmetic number, because the mean of its divisors is an integer number (21210700252).

Almost surely, 2^121204001420 is an apocalyptic number.

121204001420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121204001420 is an abundant number, since it is smaller than the sum of its proper divisors (133324401604).

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

121204001420 is a wasteful number, since it uses less digits than its factorization.

121204001420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060200080 (or 6060200078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121204001420 its reverse (24100402121), we get a palindrome (145304403541).

The spelling of 121204001420 in words is "one hundred twenty-one billion, two hundred four million, one thousand, four hundred twenty".