201222021010212 has 72 divisors (see below), whose sum is σ = 549886003430400. Its totient is φ = 61826396205888.

The previous prime is 201222021010211. The next prime is 201222021010229. The reversal of 201222021010212 is 212010120222102.

It is a happy number.

201222021010212 is a `hidden beast` number, since 2 + 0 + 12 + 220 + 210 + 10 + 212 = 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 (201222021010211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3975437412 + ... + 3975488027.

It is an arithmetic number, because the mean of its divisors is an integer number (7637305603200).

Almost surely, 2^{201222021010212} is an apocalyptic number.

It is an amenable number.

201222021010212 is an abundant number, since it is smaller than the sum of its proper divisors (348663982420188).

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

201222021010212 is a wasteful number, since it uses less digits than its factorization.

201222021010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950925505 (or 7950925500 counting only the distinct ones).

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

Adding to 201222021010212 its reverse (212010120222102), we get a palindrome (413232141232314).

The spelling of 201222021010212 in words is "two hundred one trillion, two hundred twenty-two billion, twenty-one million, ten thousand, two hundred twelve".