201210120221200 has 30 divisors (see below), whose sum is σ = 483407313832394. Its totient is φ = 80484048088320.

The previous prime is 201210120221161. The next prime is 201210120221239. The reversal of 201210120221200 is 2122021012102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (201210120221161) and next prime (201210120221239).

It can be written as a sum of positive squares in 3 ways, for example, as 51805848826384 + 149404271394816 = 7197628^2 + 12223104^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 251512649877 + ... + 251512650676.

Almost surely, 2^{201210120221200} is an apocalyptic number.

201210120221200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201210120221200 is an abundant number, since it is smaller than the sum of its proper divisors (282197193611194).

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

201210120221200 is a wasteful number, since it uses less digits than its factorization.

201210120221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503025300571 (or 503025300560 counting only the distinct ones).

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

Adding to 201210120221200 its reverse (2122021012102), we get a palindrome (203332141233302).

The spelling of 201210120221200 in words is "two hundred one trillion, two hundred ten billion, one hundred twenty million, two hundred twenty-one thousand, two hundred".