1000201021222 has 48 divisors (see below), whose sum is σ = 1640165345280. Its totient is φ = 457208084736.

The previous prime is 1000201021207. The next prime is 1000201021231. The reversal of 1000201021222 is 2221201020001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132001098 + ... + 132008674.

It is an arithmetic number, because the mean of its divisors is an integer number (34170111360).

Almost surely, 2^{1000201021222} is an apocalyptic number.

1000201021222 is a deficient number, since it is larger than the sum of its proper divisors (639964324058).

1000201021222 is a wasteful number, since it uses less digits than its factorization.

1000201021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11297 (or 11284 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1000201021222 its reverse (2221201020001), we get a palindrome (3221402041223).

The spelling of 1000201021222 in words is "one trillion, two hundred one million, twenty-one thousand, two hundred twenty-two".