131261023222 has 8 divisors (see below), whose sum is σ = 225018896976. Its totient is φ = 56254724232.

The previous prime is 131261023171. The next prime is 131261023247. The reversal of 131261023222 is 222320162131.

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

It is a super-2 number, since 2×131261023222² (a number of 23 digits) contains 22 as substring.

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, 4687893673 + ... + 4687893700.

It is an arithmetic number, because the mean of its divisors is an integer number (28127362122).

Almost surely, 2^131261023222 is an apocalyptic number.

131261023222 is a deficient number, since it is larger than the sum of its proper divisors (93757873754).

131261023222 is an equidigital number, since it uses as much as digits as its factorization.

131261023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9375787382.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 131261023222 its reverse (222320162131), we get a palindrome (353581185353).

The spelling of 131261023222 in words is "one hundred thirty-one billion, two hundred sixty-one million, twenty-three thousand, two hundred twenty-two".