421156271111 has 8 divisors (see below), whose sum is σ = 424908448944. Its totient is φ = 417404534400.

The previous prime is 421156271071. The next prime is 421156271143. The reversal of 421156271111 is 111172651124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421156271111 is a prime.

It is a super-2 number, since 2×421156271111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421156271161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1983965 + ... + 2185961.

It is an arithmetic number, because the mean of its divisors is an integer number (53113556118).

Almost surely, 2^421156271111 is an apocalyptic number.

421156271111 is a deficient number, since it is larger than the sum of its proper divisors (3752177833).

421156271111 is a wasteful number, since it uses less digits than its factorization.

421156271111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220561.

The product of its digits is 3360, while the sum is 32.

The spelling of 421156271111 in words is "four hundred twenty-one billion, one hundred fifty-six million, two hundred seventy-one thousand, one hundred eleven".