131220211002 has 32 divisors (see below), whose sum is σ = 269181781440. Its totient is φ = 42621344640.

The previous prime is 131220210971. The next prime is 131220211063. The reversal of 131220211002 is 200112022131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495427 + ... + 712662.

It is an arithmetic number, because the mean of its divisors is an integer number (8411930670).

Almost surely, 2^131220211002 is an apocalyptic number.

131220211002 is an abundant number, since it is smaller than the sum of its proper divisors (137961570438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131220211002 is a wasteful number, since it uses less digits than its factorization.

131220211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208558.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 131220211002 its reverse (200112022131), we get a palindrome (331332233133).

The spelling of 131220211002 in words is "one hundred thirty-one billion, two hundred twenty million, two hundred eleven thousand, two".