23122120212 has 36 divisors (see below), whose sum is σ = 59015043360. Its totient is φ = 7632543312.

The previous prime is 23122120201. The next prime is 23122120213. The reversal of 23122120212 is 21202122132.

23122120212 is a `hidden beast` number, since 231 + 221 + 2 + 0 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122120213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3114162 + ... + 3121577.

It is an arithmetic number, because the mean of its divisors is an integer number (1639306760).

Almost surely, 2^23122120212 is an apocalyptic number.

It is an amenable number.

23122120212 is an abundant number, since it is smaller than the sum of its proper divisors (35892923148).

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

23122120212 is a wasteful number, since it uses less digits than its factorization.

23122120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6235852 (or 6235847 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 23122120212 its reverse (21202122132), we get a palindrome (44324242344).

The spelling of 23122120212 in words is "twenty-three billion, one hundred twenty-two million, one hundred twenty thousand, two hundred twelve".