201222012300 has 144 divisors (see below), whose sum is σ = 585953642400. Its totient is φ = 53314191360.

The previous prime is 201222012259. The next prime is 201222012307. The reversal of 201222012300 is 3210222102.

It is a happy number.

It is a super-2 number, since 2×201222012300² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201222012300.

It is not an unprimeable number, because it can be changed into a prime (201222012307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60735444 + ... + 60738756.

Almost surely, 2^201222012300 is an apocalyptic number.

201222012300 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 201222012300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292976821200).

201222012300 is an abundant number, since it is smaller than the sum of its proper divisors (384731630100).

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

201222012300 is a wasteful number, since it uses less digits than its factorization.

201222012300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4572 (or 4565 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 201222012300 its reverse (3210222102), we get a palindrome (204432234402).

The spelling of 201222012300 in words is "two hundred one billion, two hundred twenty-two million, twelve thousand, three hundred".