201001121211 has 48 divisors (see below), whose sum is σ = 304755089184. Its totient is φ = 117670080000.

The previous prime is 201001121207. The next prime is 201001121213. The reversal of 201001121211 is 112121100102.

It is not a de Polignac number, because 201001121211 - 2² = 201001121207 is a prime.

It is a super-2 number, since 2×201001121211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201001121213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1436325 + ... + 1570041.

It is an arithmetic number, because the mean of its divisors is an integer number (6349064358).

Almost surely, 2^201001121211 is an apocalyptic number.

201001121211 is a deficient number, since it is larger than the sum of its proper divisors (103753967973).

201001121211 is a wasteful number, since it uses less digits than its factorization.

201001121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133884 (or 133873 counting only the distinct ones).

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

Adding to 201001121211 its reverse (112121100102), we get a palindrome (313122221313).

The spelling of 201001121211 in words is "two hundred one billion, one million, one hundred twenty-one thousand, two hundred eleven".