22313311212 has 24 divisors (see below), whose sum is σ = 52070020912. Its totient is φ = 7436966400.

The previous prime is 22313311211. The next prime is 22313311213. The reversal of 22313311212 is 21211331322.

It is an interprime number because it is at equal distance from previous prime (22313311211) and next prime (22313311213).

It is a super-3 number, since 3×22313311212³ (a number of 32 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (22313311211) 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, 21012 + ... + 212292.

Almost surely, 2^22313311212 is an apocalyptic number.

It is an amenable number.

22313311212 is an abundant number, since it is smaller than the sum of its proper divisors (29756709700).

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

22313311212 is a wasteful number, since it uses less digits than its factorization.

22313311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201009 (or 201007 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 22313311212 its reverse (21211331322), we get a palindrome (43524642534).

The spelling of 22313311212 in words is "twenty-two billion, three hundred thirteen million, three hundred eleven thousand, two hundred twelve".