1001121102201 has 32 divisors (see below), whose sum is σ = 1509355173888. Its totient is φ = 584967493440.

The previous prime is 1001121102161. The next prime is 1001121102227. The reversal of 1001121102201 is 1022011211001.

It is not a de Polignac number, because 1001121102201 - 2¹¹ = 1001121100153 is a prime.

It is a super-2 number, since 2×1001121102201² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001121152201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4713010 + ... + 4920843.

It is an arithmetic number, because the mean of its divisors is an integer number (47167349184).

Almost surely, 2^{1001121102201} is an apocalyptic number.

1001121102201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1001121102201 is a deficient number, since it is larger than the sum of its proper divisors (508234071687).

1001121102201 is a wasteful number, since it uses less digits than its factorization.

1001121102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9633981.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001121102201 its reverse (1022011211001), we get a palindrome (2023132313202).

The spelling of 1001121102201 in words is "one trillion, one billion, one hundred twenty-one million, one hundred two thousand, two hundred one".