22031301212 has 24 divisors (see below), whose sum is σ = 39164504400. Its totient is φ = 10842430976.

The previous prime is 22031301179. The next prime is 22031301217. The reversal of 22031301212 is 21210313022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22031301217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34037 + ... + 212652.

It is an arithmetic number, because the mean of its divisors is an integer number (1631854350).

Almost surely, 2^22031301212 is an apocalyptic number.

It is an amenable number.

22031301212 is a deficient number, since it is larger than the sum of its proper divisors (17133203188).

22031301212 is a wasteful number, since it uses less digits than its factorization.

22031301212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247045 (or 247043 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 22031301212 its reverse (21210313022), we get a palindrome (43241614234).

The spelling of 22031301212 in words is "twenty-two billion, thirty-one million, three hundred one thousand, two hundred twelve".