13222222420 has 24 divisors (see below), whose sum is σ = 30290910048. Its totient is φ = 4808080800.

The previous prime is 13222222397. The next prime is 13222222459. The reversal of 13222222420 is 2422222231.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 13222222391 and 13222222400.

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, 30050286 + ... + 30050725.

It is an arithmetic number, because the mean of its divisors is an integer number (1262121252).

Almost surely, 2^13222222420 is an apocalyptic number.

13222222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222222420 is an abundant number, since it is smaller than the sum of its proper divisors (17068687628).

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

13222222420 is a wasteful number, since it uses less digits than its factorization.

13222222420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60101031 (or 60101029 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 13222222420 its reverse (2422222231), we get a palindrome (15644444651).

The spelling of 13222222420 in words is "thirteen billion, two hundred twenty-two million, two hundred twenty-two thousand, four hundred twenty".