201212202021210 has 96 divisors (see below), whose sum is σ = 523627082192448. Its totient is φ = 53607843843840.

The previous prime is 201212202021209. The next prime is 201212202021293. The reversal of 201212202021210 is 12120202212102.

It is a happy number.

201212202021210 is a `hidden beast` number, since 2 + 0 + 121 + 220 + 202 + 121 + 0 = 666.

201212202021210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 897223254 + ... + 897447486.

It is an arithmetic number, because the mean of its divisors is an integer number (5454448772838).

Almost surely, 2^{201212202021210} is an apocalyptic number.

201212202021210 is an abundant number, since it is smaller than the sum of its proper divisors (322414880171238).

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

201212202021210 is a wasteful number, since it uses less digits than its factorization.

201212202021210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233260 (or 233257 counting only the distinct ones).

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

Adding to 201212202021210 its reverse (12120202212102), we get a palindrome (213332404233312).

The spelling of 201212202021210 in words is "two hundred one trillion, two hundred twelve billion, two hundred two million, twenty-one thousand, two hundred ten".