20122013223 has 64 divisors (see below), whose sum is σ = 32559923200. Its totient is φ = 12280675680.

The previous prime is 20122013221. The next prime is 20122013257. The reversal of 20122013223 is 32231022102.

It is not a de Polignac number, because 20122013223 - 2¹ = 20122013221 is a prime.

It is a super-2 number, since 2×20122013223² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20122013196 and 20122013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122013221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7532178 + ... + 7534848.

It is an arithmetic number, because the mean of its divisors is an integer number (508748800).

Almost surely, 2^20122013223 is an apocalyptic number.

20122013223 is a deficient number, since it is larger than the sum of its proper divisors (12437909977).

20122013223 is a wasteful number, since it uses less digits than its factorization.

20122013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20122013223 its reverse (32231022102), we get a palindrome (52353035325).

The spelling of 20122013223 in words is "twenty billion, one hundred twenty-two million, thirteen thousand, two hundred twenty-three".