201122423212 has 24 divisors (see below), whose sum is σ = 358479550800. Its totient is φ = 98715952896.

The previous prime is 201122423197. The next prime is 201122423213. The reversal of 201122423212 is 212324221102.

It is not an unprimeable number, because it can be changed into a prime (201122423213) 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, 1982713 + ... + 2081680.

It is an arithmetic number, because the mean of its divisors is an integer number (14936647950).

Almost surely, 2^201122423212 is an apocalyptic number.

It is an amenable number.

201122423212 is a deficient number, since it is larger than the sum of its proper divisors (157357127588).

201122423212 is a wasteful number, since it uses less digits than its factorization.

201122423212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064625 (or 4064623 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 201122423212 its reverse (212324221102), we get a palindrome (413446644314).

The spelling of 201122423212 in words is "two hundred one billion, one hundred twenty-two million, four hundred twenty-three thousand, two hundred twelve".