1421445242121 has 8 divisors (see below), whose sum is σ = 1895333492640. Its totient is φ = 947593576512.

The previous prime is 1421445242071. The next prime is 1421445242131. The reversal of 1421445242121 is 1212425441241.

It is a happy number.

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

It is not a de Polignac number, because 1421445242121 - 2¹⁴ = 1421445225737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421445242131) 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, 9055440 + ... + 9211073.

It is an arithmetic number, because the mean of its divisors is an integer number (236916686580).

Almost surely, 2^{1421445242121} is an apocalyptic number.

It is an amenable number.

1421445242121 is a deficient number, since it is larger than the sum of its proper divisors (473888250519).

1421445242121 is a wasteful number, since it uses less digits than its factorization.

1421445242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18292455.

The product of its digits is 20480, while the sum is 33.

The spelling of 1421445242121 in words is "one trillion, four hundred twenty-one billion, four hundred forty-five million, two hundred forty-two thousand, one hundred twenty-one".