201000220131 has 4 divisors (see below), whose sum is σ = 268000293512. Its totient is φ = 134000146752.

The previous prime is 201000220121. The next prime is 201000220159. The reversal of 201000220131 is 131022000102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201000220131 - 2²² = 200996025827 is a prime.

It is a super-2 number, since 2×201000220131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201000220121) 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 3 ways as a sum of consecutive naturals, for example, 33500036686 + ... + 33500036691.

It is an arithmetic number, because the mean of its divisors is an integer number (67000073378).

Almost surely, 2^201000220131 is an apocalyptic number.

201000220131 is a deficient number, since it is larger than the sum of its proper divisors (67000073381).

201000220131 is an equidigital number, since it uses as much as digits as its factorization.

201000220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67000073380.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 201000220131 its reverse (131022000102), we get a palindrome (332022220233).

The spelling of 201000220131 in words is "two hundred one billion, two hundred twenty thousand, one hundred thirty-one".