1421202117959 has 16 divisors (see below), whose sum is σ = 1597143317952. Its totient is φ = 1254783011328.

The previous prime is 1421202117761. The next prime is 1421202117967. The reversal of 1421202117959 is 9597112021241.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421202117959 is a prime.

It is a super-2 number, since 2×1421202117959² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421202117359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7233647 + ... + 7427519.

It is an arithmetic number, because the mean of its divisors is an integer number (99821457372).

Almost surely, 2^{1421202117959} is an apocalyptic number.

1421202117959 is a deficient number, since it is larger than the sum of its proper divisors (175941199993).

1421202117959 is a wasteful number, since it uses less digits than its factorization.

1421202117959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218426.

The product of its (nonzero) digits is 90720, while the sum is 44.

The spelling of 1421202117959 in words is "one trillion, four hundred twenty-one billion, two hundred two million, one hundred seventeen thousand, nine hundred fifty-nine".