13220021122 has 16 divisors (see below), whose sum is σ = 24723156672. Its totient is φ = 5150657520.

The previous prime is 13220021071. The next prime is 13220021123. The reversal of 13220021122 is 22112002231.

It is a happy number.

It is a super-2 number, since 2×13220021122² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13220021096 and 13220021105.

It is not an unprimeable number, because it can be changed into a prime (13220021123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42921993 + ... + 42922300.

It is an arithmetic number, because the mean of its divisors is an integer number (1545197292).

Almost surely, 2^13220021122 is an apocalyptic number.

13220021122 is a deficient number, since it is larger than the sum of its proper divisors (11503135550).

13220021122 is a wasteful number, since it uses less digits than its factorization.

13220021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85844313.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13220021122 its reverse (22112002231), we get a palindrome (35332023353).

The spelling of 13220021122 in words is "thirteen billion, two hundred twenty million, twenty-one thousand, one hundred twenty-two".