210001221002011 has 8 divisors (see below), whose sum is σ = 210155641247520. Its totient is φ = 209846853138048.

The previous prime is 210001221001997. The next prime is 210001221002033. The reversal of 210001221002011 is 110200122100012.

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

It is a cyclic number.

It is not a de Polignac number, because 210001221002011 - 2⁷ = 210001221001883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210001221001982 and 210001221002000.

It is not an unprimeable number, because it can be changed into a prime (210001221002711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5072496 + ... + 21112381.

It is an arithmetic number, because the mean of its divisors is an integer number (26269455155940).

Almost surely, 2^{210001221002011} is an apocalyptic number.

210001221002011 is a deficient number, since it is larger than the sum of its proper divisors (154420245509).

210001221002011 is a wasteful number, since it uses less digits than its factorization.

210001221002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26190773.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210001221002011 its reverse (110200122100012), we get a palindrome (320201343102023).

The spelling of 210001221002011 in words is "two hundred ten trillion, one billion, two hundred twenty-one million, two thousand, eleven".