201222101000 has 64 divisors (see below), whose sum is σ = 491331934080. Its totient is φ = 76989316800.

The previous prime is 201222100969. The next prime is 201222101011. The reversal of 201222101000 is 101222102.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4351394 + ... + 4397393.

It is an arithmetic number, because the mean of its divisors is an integer number (7677061470).

Almost surely, 2^201222101000 is an apocalyptic number.

201222101000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222101000 is an abundant number, since it is smaller than the sum of its proper divisors (290109833080).

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

201222101000 is a wasteful number, since it uses less digits than its factorization.

201222101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748831 (or 8748817 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 201222101000 its reverse (101222102), we get a palindrome (201323323102).

The spelling of 201222101000 in words is "two hundred one billion, two hundred twenty-two million, one hundred one thousand".