201222000002100 has 576 divisors, whose sum is σ = 730805325465600. Its totient is φ = 41528567808000.

The previous prime is 201222000002081. The next prime is 201222000002131. The reversal of 201222000002100 is 1200000222102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2109883216 + ... + 2109978584.

It is an arithmetic number, because the mean of its divisors is an integer number (1268759245600).

Almost surely, 2^{201222000002100} is an apocalyptic number.

201222000002100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201222000002100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (365402662732800).

201222000002100 is an abundant number, since it is smaller than the sum of its proper divisors (529583325463500).

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

201222000002100 is a wasteful number, since it uses less digits than its factorization.

201222000002100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96024 (or 96017 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 201222000002100 its reverse (1200000222102), we get a palindrome (202422000224202).

The spelling of 201222000002100 in words is "two hundred one trillion, two hundred twenty-two billion, two thousand, one hundred".