131020213222 has 32 divisors (see below), whose sum is σ = 208817131680. Its totient is φ = 61441712640.

The previous prime is 131020213211. The next prime is 131020213249. The reversal of 131020213222 is 222312020131.

It is a self number, because there is not a number n which added to its sum of digits gives 131020213222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15937029 + ... + 15945247.

It is an arithmetic number, because the mean of its divisors is an integer number (6525535365).

Almost surely, 2^131020213222 is an apocalyptic number.

131020213222 is a deficient number, since it is larger than the sum of its proper divisors (77796918458).

131020213222 is a wasteful number, since it uses less digits than its factorization.

131020213222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9816.

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

Adding to 131020213222 its reverse (222312020131), we get a palindrome (353332233353).

The spelling of 131020213222 in words is "one hundred thirty-one billion, twenty million, two hundred thirteen thousand, two hundred twenty-two".