201222211212210 has 64 divisors (see below), whose sum is σ = 492074466162048. Its totient is φ = 52643692168704.

The previous prime is 201222211212203. The next prime is 201222211212229. The reversal of 201222211212210 is 12212112222102.

201222211212210 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23095974 + ... + 30591966.

It is an arithmetic number, because the mean of its divisors is an integer number (7688663533782).

Almost surely, 2^{201222211212210} is an apocalyptic number.

201222211212210 is an abundant number, since it is smaller than the sum of its proper divisors (290852254949838).

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

201222211212210 is a wasteful number, since it uses less digits than its factorization.

201222211212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7512939.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 201222211212210 its reverse (12212112222102), we get a palindrome (213434323434312).

The spelling of 201222211212210 in words is "two hundred one trillion, two hundred twenty-two billion, two hundred eleven million, two hundred twelve thousand, two hundred ten".