23012212 has 6 divisors (see below), whose sum is σ = 40271378. Its totient is φ = 11506104.

The previous prime is 23012191. The next prime is 23012219. The reversal of 23012212 is 21221032.

It can be written as a sum of positive squares in only one way, i.e., 12082576 + 10929636 = 3476^2 + 3306^2 .

It is a super-2 number, since 2×23012212² = 1059123802265888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23012192 and 23012201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2876523 + ... + 2876530.

Almost surely, 2^23012212 is an apocalyptic number.

It is an amenable number.

23012212 is a deficient number, since it is larger than the sum of its proper divisors (17259166).

23012212 is a wasteful number, since it uses less digits than its factorization.

23012212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5753057 (or 5753055 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23012212 is about 4797.1045433678. The cubic root of 23012212 is about 284.4370214037.

Adding to 23012212 its reverse (21221032), we get a palindrome (44233244).

The spelling of 23012212 in words is "twenty-three million, twelve thousand, two hundred twelve".