1214003455521 has 16 divisors (see below), whose sum is σ = 1671062642688. Its totient is φ = 783145458000.

The previous prime is 1214003455519. The next prime is 1214003455537. The reversal of 1214003455521 is 1255543004121.

It is not a de Polignac number, because 1214003455521 - 2¹ = 1214003455519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1214003455501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204870 + ... + 1571616.

It is an arithmetic number, because the mean of its divisors is an integer number (104441415168).

Almost surely, 2^{1214003455521} is an apocalyptic number.

It is an amenable number.

1214003455521 is a deficient number, since it is larger than the sum of its proper divisors (457059187167).

1214003455521 is a wasteful number, since it uses less digits than its factorization.

1214003455521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376332.

The product of its (nonzero) digits is 24000, while the sum is 33.

Adding to 1214003455521 its reverse (1255543004121), we get a palindrome (2469546459642).

The spelling of 1214003455521 in words is "one trillion, two hundred fourteen billion, three million, four hundred fifty-five thousand, five hundred twenty-one".