211020202010 has 32 divisors (see below), whose sum is σ = 393117837840. Its totient is φ = 81459363328.

The previous prime is 211020202007. The next prime is 211020202049. The reversal of 211020202010 is 10202020112.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 12294152641 + 198726049369 = 110879^2 + 445787^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211020201982 and 211020202000.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 455384 + ... + 793356.

Almost surely, 2^211020202010 is an apocalyptic number.

211020202010 is a deficient number, since it is larger than the sum of its proper divisors (182097635830).

211020202010 is a wasteful number, since it uses less digits than its factorization.

211020202010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340162.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 211020202010 its reverse (10202020112), we get a palindrome (221222222122).

The spelling of 211020202010 in words is "two hundred eleven billion, twenty million, two hundred two thousand, ten".