131222006 has 8 divisors (see below), whose sum is σ = 197529384. Its totient is φ = 65378880.

The previous prime is 131221991. The next prime is 131222023. The reversal of 131222006 is 600222131.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115355 + ... + 116486.

It is an arithmetic number, because the mean of its divisors is an integer number (24691173).

Almost surely, 2^131222006 is an apocalyptic number.

131222006 is a deficient number, since it is larger than the sum of its proper divisors (66307378).

131222006 is a wasteful number, since it uses less digits than its factorization.

131222006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232126.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131222006 is about 11455.2174139123. The cubic root of 131222006 is about 508.1620450452.

Adding to 131222006 its reverse (600222131), we get a palindrome (731444137).

The spelling of 131222006 in words is "one hundred thirty-one million, two hundred twenty-two thousand, six".