211021202001 has 8 divisors (see below), whose sum is σ = 281939349184. Its totient is φ = 140391928080.

The previous prime is 211021201999. The next prime is 211021202009. The reversal of 211021202001 is 100202120112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211021202001 - 2¹ = 211021201999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211021202009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72216610 + ... + 72219531.

It is an arithmetic number, because the mean of its divisors is an integer number (35242418648).

Almost surely, 2^211021202001 is an apocalyptic number.

It is an amenable number.

211021202001 is a deficient number, since it is larger than the sum of its proper divisors (70918147183).

211021202001 is a wasteful number, since it uses less digits than its factorization.

211021202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144436631.

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

Adding to 211021202001 its reverse (100202120112), we get a palindrome (311223322113).

The spelling of 211021202001 in words is "two hundred eleven billion, twenty-one million, two hundred two thousand, one".