211220202010 has 16 divisors (see below), whose sum is σ = 380568758472. Its totient is φ = 84405326400.

The previous prime is 211220202001. The next prime is 211220202031. The reversal of 211220202010 is 10202022112.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 191092253881 + 20127948129 = 437141^2 + 141873^2 .

It is a super-2 number, since 2×211220202010² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10333581 + ... + 10354000.

Almost surely, 2^211220202010 is an apocalyptic number.

211220202010 is a deficient number, since it is larger than the sum of its proper divisors (169348556462).

211220202010 is a wasteful number, since it uses less digits than its factorization.

211220202010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20688609.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 211220202010 its reverse (10202022112), we get a palindrome (221422224122).

The spelling of 211220202010 in words is "two hundred eleven billion, two hundred twenty million, two hundred two thousand, ten".