201222021201100 has 36 divisors (see below), whose sum is σ = 436652457348184. Its totient is φ = 80488684730880.

The previous prime is 201222021201007. The next prime is 201222021201107. The reversal of 201222021201100 is 1102120222102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (201222021201107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91913407 + ... + 94077193.

Almost surely, 2^{201222021201100} is an apocalyptic number.

201222021201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222021201100 is an abundant number, since it is smaller than the sum of its proper divisors (235430436147084).

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

201222021201100 is a wasteful number, since it uses less digits than its factorization.

201222021201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093754 (or 3093747 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201222021201100 its reverse (1102120222102), we get a palindrome (202324141423202).

The spelling of 201222021201100 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, two hundred one thousand, one hundred".