23012031222 has 96 divisors (see below), whose sum is σ = 54776498400. Its totient is φ = 6953942016.

The previous prime is 23012031209. The next prime is 23012031233. The reversal of 23012031222 is 22213021032.

23012031222 is a `hidden beast` number, since 230 + 120 + 312 + 2 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23012031195 and 23012031204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1110468 + ... + 1131000.

It is an arithmetic number, because the mean of its divisors is an integer number (570588525).

Almost surely, 2^23012031222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23012031222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27388249200).

23012031222 is an abundant number, since it is smaller than the sum of its proper divisors (31764467178).

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

23012031222 is a wasteful number, since it uses less digits than its factorization.

23012031222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20702 (or 20699 counting only the distinct ones).

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

Adding to 23012031222 its reverse (22213021032), we get a palindrome (45225052254).

The spelling of 23012031222 in words is "twenty-three billion, twelve million, thirty-one thousand, two hundred twenty-two".