131200221111 has 8 divisors (see below), whose sum is σ = 174937190400. Its totient is φ = 87465032952.

The previous prime is 131200221109. The next prime is 131200221121. The reversal of 131200221111 is 111122002131.

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

It is not a de Polignac number, because 131200221111 - 2¹ = 131200221109 is a prime.

It is a super-4 number, since 4×131200221111⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131200221121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262711 + ... + 575688.

It is an arithmetic number, because the mean of its divisors is an integer number (21867148800).

Almost surely, 2^131200221111 is an apocalyptic number.

131200221111 is a deficient number, since it is larger than the sum of its proper divisors (43736969289).

131200221111 is an equidigital number, since it uses as much as digits as its factorization.

131200221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890565.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 131200221111 its reverse (111122002131), we get a palindrome (242322223242).

The spelling of 131200221111 in words is "one hundred thirty-one billion, two hundred million, two hundred twenty-one thousand, one hundred eleven".