210220021211 has 8 divisors (see below), whose sum is σ = 211256444400. Its totient is φ = 209184628320.

The previous prime is 210220021181. The next prime is 210220021267. The reversal of 210220021211 is 112120022012.

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 210220021211 - 2⁶ = 210220021147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210220021811) 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, 153116 + ... + 666246.

It is an arithmetic number, because the mean of its divisors is an integer number (26407055550).

Almost surely, 2^210220021211 is an apocalyptic number.

210220021211 is a deficient number, since it is larger than the sum of its proper divisors (1036423189).

210220021211 is a wasteful number, since it uses less digits than its factorization.

210220021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515149.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210220021211 its reverse (112120022012), we get a palindrome (322340043223).

The spelling of 210220021211 in words is "two hundred ten billion, two hundred twenty million, twenty-one thousand, two hundred eleven".