1210220020211 has 4 divisors (see below), whose sum is σ = 1211511611352. Its totient is φ = 1208928429072.

The previous prime is 1210220020199. The next prime is 1210220020237. The reversal of 1210220020211 is 1120200220121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1210220020211 - 2¹⁴ = 1210220003827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210220022211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645794165 + ... + 645796038.

It is an arithmetic number, because the mean of its divisors is an integer number (302877902838).

Almost surely, 2^{1210220020211} is an apocalyptic number.

1210220020211 is a deficient number, since it is larger than the sum of its proper divisors (1291591141).

1210220020211 is an equidigital number, since it uses as much as digits as its factorization.

1210220020211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291591140.

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

Adding to 1210220020211 its reverse (1120200220121), we get a palindrome (2330420240332).

The spelling of 1210220020211 in words is "one trillion, two hundred ten billion, two hundred twenty million, twenty thousand, two hundred eleven".