131221230022 has 8 divisors (see below), whose sum is σ = 196833382200. Its totient is φ = 65610102624.

The previous prime is 131221230017. The next prime is 131221230037. The reversal of 131221230022 is 220032122131.

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

It is a super-2 number, since 2×131221230022² (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, 371854 + ... + 633022.

It is an arithmetic number, because the mean of its divisors is an integer number (24604172775).

Almost surely, 2^131221230022 is an apocalyptic number.

131221230022 is a deficient number, since it is larger than the sum of its proper divisors (65612152178).

131221230022 is a wasteful number, since it uses less digits than its factorization.

131221230022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512390.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 131221230022 its reverse (220032122131), we get a palindrome (351253352153).

The spelling of 131221230022 in words is "one hundred thirty-one billion, two hundred twenty-one million, two hundred thirty thousand, twenty-two".