201201221092 has 24 divisors (see below), whose sum is σ = 358237958400. Its totient is φ = 98849118816.

The previous prime is 201201221087. The next prime is 201201221093. The reversal of 201201221092 is 290122102102.

It is not an unprimeable number, because it can be changed into a prime (201201221093) 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, 306834 + ... + 704662.

It is an arithmetic number, because the mean of its divisors is an integer number (14926581600).

Almost surely, 2^201201221092 is an apocalyptic number.

It is an amenable number.

201201221092 is a deficient number, since it is larger than the sum of its proper divisors (157036737308).

201201221092 is a wasteful number, since it uses less digits than its factorization.

201201221092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400035 (or 400033 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 201201221092 its reverse (290122102102), we get a palindrome (491323323194).

The spelling of 201201221092 in words is "two hundred one billion, two hundred one million, two hundred twenty-one thousand, ninety-two".