20010100211 has 16 divisors (see below), whose sum is σ = 22446720000. Its totient is φ = 17746901568.

The previous prime is 20010100199. The next prime is 20010100237. The reversal of 20010100211 is 11200101002.

It is not a de Polignac number, because 20010100211 - 2¹⁸ = 20009838067 is a prime.

It is a super-2 number, since 2×20010100211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010100241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466586 + ... + 507663.

It is an arithmetic number, because the mean of its divisors is an integer number (1402920000).

Almost surely, 2^20010100211 is an apocalyptic number.

20010100211 is a deficient number, since it is larger than the sum of its proper divisors (2436619789).

20010100211 is a wasteful number, since it uses less digits than its factorization.

20010100211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974338.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20010100211 its reverse (11200101002), we get a palindrome (31210201213).

It can be divided in two parts, 200101002 and 11, that multiplied together give a palindrome (2201111022).

The spelling of 20010100211 in words is "twenty billion, ten million, one hundred thousand, two hundred eleven".