13020311222 has 16 divisors (see below), whose sum is σ = 20578622400. Its totient is φ = 6161445000.

The previous prime is 13020311149. The next prime is 13020311243. The reversal of 13020311222 is 22211302031.

It is a self number, because there is not a number n which added to its sum of digits gives 13020311222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129404 + ... + 206847.

It is an arithmetic number, because the mean of its divisors is an integer number (1286163900).

Almost surely, 2^13020311222 is an apocalyptic number.

13020311222 is a deficient number, since it is larger than the sum of its proper divisors (7558311178).

13020311222 is a wasteful number, since it uses less digits than its factorization.

13020311222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337291.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13020311222 its reverse (22211302031), we get a palindrome (35231613253).

The spelling of 13020311222 in words is "thirteen billion, twenty million, three hundred eleven thousand, two hundred twenty-two".