201212201202210 has 320 divisors, whose sum is σ = 591752144903040. Its totient is φ = 48652382868480.

The previous prime is 201212201202169. The next prime is 201212201202211. The reversal of 201212201202210 is 12202102212102.

It is a happy number.

201212201202210 is a `hidden beast` number, since 20 + 1 + 212 + 20 + 1 + 202 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (201212201202211) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 11845061337 + ... + 11845078323.

It is an arithmetic number, because the mean of its divisors is an integer number (1849225452822).

Almost surely, 2^{201212201202210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201212201202210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295876072451520).

201212201202210 is an abundant number, since it is smaller than the sum of its proper divisors (390539943700830).

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

201212201202210 is a wasteful number, since it uses less digits than its factorization.

201212201202210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20383 (or 20374 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201212201202210 its reverse (12202102212102), we get a palindrome (213414303414312).

The spelling of 201212201202210 in words is "two hundred one trillion, two hundred twelve billion, two hundred one million, two hundred two thousand, two hundred ten".