201224531212 has 12 divisors (see below), whose sum is σ = 353151937600. Its totient is φ = 100323977616.

The previous prime is 201224531197. The next prime is 201224531213. The reversal of 201224531212 is 212135422102.

It is a super-2 number, since 2×201224531212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201224531213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72070428 + ... + 72073219.

Almost surely, 2^201224531212 is an apocalyptic number.

It is an amenable number.

201224531212 is a deficient number, since it is larger than the sum of its proper divisors (151927406388).

201224531212 is a wasteful number, since it uses less digits than its factorization.

201224531212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144144000 (or 144143998 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 201224531212 its reverse (212135422102), we get a palindrome (413359953314).

The spelling of 201224531212 in words is "two hundred one billion, two hundred twenty-four million, five hundred thirty-one thousand, two hundred twelve".