1421547047121 has 8 divisors (see below), whose sum is σ = 1900268547840. Its totient is φ = 945261788912.

The previous prime is 1421547047083. The next prime is 1421547047171. The reversal of 1421547047121 is 1217407451241.

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

It is a cyclic number.

It is not a de Polignac number, because 1421547047121 - 2¹¹ = 1421547045073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1421547047121.

It is not an unprimeable number, because it can be changed into a prime (1421547047171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609059265 + ... + 609061598.

It is an arithmetic number, because the mean of its divisors is an integer number (237533568480).

Almost surely, 2^{1421547047121} is an apocalyptic number.

It is an amenable number.

1421547047121 is a deficient number, since it is larger than the sum of its proper divisors (478721500719).

1421547047121 is a wasteful number, since it uses less digits than its factorization.

1421547047121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218121255.

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 1421547047121 in words is "one trillion, four hundred twenty-one billion, five hundred forty-seven million, forty-seven thousand, one hundred twenty-one".