1421215250533 has 32 divisors (see below), whose sum is σ = 1596741672960. Its totient is φ = 1256078681280.

The previous prime is 1421215250531. The next prime is 1421215250549. The reversal of 1421215250533 is 3350525121241.

It is a cyclic number.

It is not a de Polignac number, because 1421215250533 - 2¹ = 1421215250531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421215250531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33915288 + ... + 33957166.

It is an arithmetic number, because the mean of its divisors is an integer number (49898177280).

Almost surely, 2^{1421215250533} is an apocalyptic number.

1421215250533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1421215250533 is a deficient number, since it is larger than the sum of its proper divisors (175526422427).

1421215250533 is a wasteful number, since it uses less digits than its factorization.

1421215250533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42817.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1421215250533 in words is "one trillion, four hundred twenty-one billion, two hundred fifteen million, two hundred fifty thousand, five hundred thirty-three".