201212002101222 has 384 divisors, whose sum is σ = 518325504592896. Its totient is φ = 55236880613376.

The previous prime is 201212002101191. The next prime is 201212002101239. The reversal of 201212002101222 is 222101200212102.

It is a happy number.

201212002101222 is a `hidden beast` number, since 20 + 1 + 212 + 0 + 0 + 210 + 1 + 222 = 666.

201212002101222 is digitally balanced in base 2 and base 4, because in such bases 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 a junction number, because it is equal to n+sod(n) for n = 201212002101195 and 201212002101204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 17261039218 + ... + 17261050874.

It is an arithmetic number, because the mean of its divisors is an integer number (1349806001544).

Almost surely, 2^{201212002101222} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201212002101222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (259162752296448).

201212002101222 is an abundant number, since it is smaller than the sum of its proper divisors (317113502491674).

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

201212002101222 is a wasteful number, since it uses less digits than its factorization.

201212002101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12140 (or 12137 counting only the distinct ones).

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

Adding to 201212002101222 its reverse (222101200212102), we get a palindrome (423313202313324).

The spelling of 201212002101222 in words is "two hundred one trillion, two hundred twelve billion, two million, one hundred one thousand, two hundred twenty-two".