23210011212 has 24 divisors (see below), whose sum is σ = 54162586800. Its totient is φ = 7735828416.

The previous prime is 23210011211. The next prime is 23210011213. The reversal of 23210011212 is 21211001232.

It is an interprime number because it is at equal distance from previous prime (23210011211) and next prime (23210011213).

It is a super-2 number, since 2×23210011212² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23210011191 and 23210011200.

It is not an unprimeable number, because it can be changed into a prime (23210011211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15114 + ... + 215982.

It is an arithmetic number, because the mean of its divisors is an integer number (2256774450).

Almost surely, 2^23210011212 is an apocalyptic number.

It is an amenable number.

23210011212 is an abundant number, since it is smaller than the sum of its proper divisors (30952575588).

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

23210011212 is a wasteful number, since it uses less digits than its factorization.

23210011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210505 (or 210503 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 23210011212 its reverse (21211001232), we get a palindrome (44421012444).

The spelling of 23210011212 in words is "twenty-three billion, two hundred ten million, eleven thousand, two hundred twelve".