2001211321032 has 192 divisors, whose sum is σ = 7054363137600. Its totient is φ = 519795118080.

The previous prime is 2001211321013. The next prime is 2001211321037. The reversal of 2001211321032 is 2301231121002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2001211320996 and 2001211321014.

It is not an unprimeable number, because it can be changed into a prime (2001211321037) 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, 8478073 + ... + 8710920.

It is an arithmetic number, because the mean of its divisors is an integer number (36741474675).

Almost surely, 2^{2001211321032} is an apocalyptic number.

2001211321032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2001211321032 is an abundant number, since it is smaller than the sum of its proper divisors (5053151816568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2001211321032 is a wasteful number, since it uses less digits than its factorization.

2001211321032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17189033 (or 17189016 counting only the distinct ones).

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

Adding to 2001211321032 its reverse (2301231121002), we get a palindrome (4302442442034).

The spelling of 2001211321032 in words is "two trillion, one billion, two hundred eleven million, three hundred twenty-one thousand, thirty-two".