2001210321201 has 32 divisors (see below), whose sum is σ = 3284172165120. Its totient is φ = 1055540165184.

The previous prime is 2001210321199. The next prime is 2001210321211. The reversal of 2001210321201 is 1021230121002.

It is not a de Polignac number, because 2001210321201 - 2¹ = 2001210321199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001210321211) 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, 7168236 + ... + 7442178.

It is an arithmetic number, because the mean of its divisors is an integer number (102630380160).

Almost surely, 2^{2001210321201} is an apocalyptic number.

2001210321201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2001210321201 is a deficient number, since it is larger than the sum of its proper divisors (1282961843919).

2001210321201 is a wasteful number, since it uses less digits than its factorization.

2001210321201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300725.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2001210321201 its reverse (1021230121002), we get a palindrome (3022440442203).

The spelling of 2001210321201 in words is "two trillion, one billion, two hundred ten million, three hundred twenty-one thousand, two hundred one".