201001122303021 has 16 divisors (see below), whose sum is σ = 298938115324800. Its totient is φ = 133479344507904.

The previous prime is 201001122303011. The next prime is 201001122303101. The reversal of 201001122303021 is 120303221100102.

201001122303021 is a `hidden beast` number, since 20 + 1 + 0 + 0 + 112 + 230 + 302 + 1 = 666.

It is not a de Polignac number, because 201001122303021 - 2²¹ = 201001120205869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201001122302985 and 201001122303003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201001122303011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14483428881 + ... + 14483442758.

It is an arithmetic number, because the mean of its divisors is an integer number (18683632207800).

Almost surely, 2^{201001122303021} is an apocalyptic number.

It is an amenable number.

201001122303021 is a deficient number, since it is larger than the sum of its proper divisors (97936993021779).

201001122303021 is a wasteful number, since it uses less digits than its factorization.

201001122303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28966871905 (or 28966871899 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201001122303021 its reverse (120303221100102), we get a palindrome (321304343403123).

The spelling of 201001122303021 in words is "two hundred one trillion, one billion, one hundred twenty-two million, three hundred three thousand, twenty-one".