1000212122201 has 32 divisors (see below), whose sum is σ = 1041361920000. Its totient is φ = 960122783872.

The previous prime is 1000212122167. The next prime is 1000212122207. The reversal of 1000212122201 is 1022212120001.

It is a cyclic number.

It is not a de Polignac number, because 1000212122201 - 2¹⁰ = 1000212121177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000212122207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215143325 + ... + 215147973.

It is an arithmetic number, because the mean of its divisors is an integer number (32542560000).

Almost surely, 2^{1000212122201} is an apocalyptic number.

It is an amenable number.

1000212122201 is a deficient number, since it is larger than the sum of its proper divisors (41149797799).

1000212122201 is a wasteful number, since it uses less digits than its factorization.

1000212122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1000212122201 its reverse (1022212120001), we get a palindrome (2022424242202).

It can be divided in two parts, 100021 and 2122201, that added together give a palindrome (2222222).

The spelling of 1000212122201 in words is "one trillion, two hundred twelve million, one hundred twenty-two thousand, two hundred one".