201222423066 has 16 divisors (see below), whose sum is σ = 459936967104. Its totient is φ = 57492120864.

The previous prime is 201222422953. The next prime is 201222423121. The reversal of 201222423066 is 660324222102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2395504995 + ... + 2395505078.

It is an arithmetic number, because the mean of its divisors is an integer number (28746060444).

Almost surely, 2^201222423066 is an apocalyptic number.

201222423066 is an abundant number, since it is smaller than the sum of its proper divisors (258714544038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201222423066 is a wasteful number, since it uses less digits than its factorization.

201222423066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4791010085.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 201222423066 its reverse (660324222102), we get a palindrome (861546645168).

The spelling of 201222423066 in words is "two hundred one billion, two hundred twenty-two million, four hundred twenty-three thousand, sixty-six".