1000121202201 has 48 divisors (see below), whose sum is σ = 1552256806464. Its totient is φ = 570370944000.

The previous prime is 1000121202181. The next prime is 1000121202233. The reversal of 1000121202201 is 1022021210001.

It is not a de Polignac number, because 1000121202201 - 2⁵ = 1000121202169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000121202281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41710146 + ... + 41734116.

It is an arithmetic number, because the mean of its divisors is an integer number (32338683468).

Almost surely, 2^{1000121202201} is an apocalyptic number.

1000121202201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000121202201 is a deficient number, since it is larger than the sum of its proper divisors (552135604263).

1000121202201 is a wasteful number, since it uses less digits than its factorization.

1000121202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30774 (or 30763 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1000121202201 its reverse (1022021210001), we get a palindrome (2022142412202).

The spelling of 1000121202201 in words is "one trillion, one hundred twenty-one million, two hundred two thousand, two hundred one".