131211121022 has 8 divisors (see below), whose sum is σ = 196818591072. Its totient is φ = 65604924000.

The previous prime is 131211121009. The next prime is 131211121039. The reversal of 131211121022 is 220121112131.

It is a happy number.

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, 5147 + ... + 512297.

It is an arithmetic number, because the mean of its divisors is an integer number (24602323884).

Almost surely, 2^131211121022 is an apocalyptic number.

131211121022 is a deficient number, since it is larger than the sum of its proper divisors (65607470050).

131211121022 is a wasteful number, since it uses less digits than its factorization.

131211121022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636514.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 131211121022 its reverse (220121112131), we get a palindrome (351332233153).

The spelling of 131211121022 in words is "one hundred thirty-one billion, two hundred eleven million, one hundred twenty-one thousand, twenty-two".