13422123220 has 48 divisors (see below), whose sum is σ = 32557629888. Its totient is φ = 4593666560.

The previous prime is 13422123217. The next prime is 13422123259. The reversal of 13422123220 is 2232122431.

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 = 13422123191 and 13422123200.

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, 1790662 + ... + 1798141.

It is an arithmetic number, because the mean of its divisors is an integer number (678283956).

Almost surely, 2^13422123220 is an apocalyptic number.

13422123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13422123220 is an abundant number, since it is smaller than the sum of its proper divisors (19135506668).

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

13422123220 is a wasteful number, since it uses less digits than its factorization.

13422123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588840 (or 3588838 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13422123220 its reverse (2232122431), we get a palindrome (15654245651).

The spelling of 13422123220 in words is "thirteen billion, four hundred twenty-two million, one hundred twenty-three thousand, two hundred twenty".