210220201012221 has 8 divisors (see below), whose sum is σ = 311437334832960. Its totient is φ = 140146800674796.

The previous prime is 210220201012207. The next prime is 210220201012231. The reversal of 210220201012221 is 122210102022012.

It is a happy number.

210220201012221 is a `hidden beast` number, since 2 + 10 + 220 + 201 + 0 + 12 + 221 = 666.

It is not a de Polignac number, because 210220201012221 - 2²⁹ = 210219664141309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210220201012194 and 210220201012203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220201012201) 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, 3892966685385 + ... + 3892966685438.

It is an arithmetic number, because the mean of its divisors is an integer number (38929666854120).

Almost surely, 2^{210220201012221} is an apocalyptic number.

It is an amenable number.

210220201012221 is a deficient number, since it is larger than the sum of its proper divisors (101217133820739).

210220201012221 is an equidigital number, since it uses as much as digits as its factorization.

210220201012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7785933370832 (or 7785933370826 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 210220201012221 its reverse (122210102022012), we get a palindrome (332430303034233).

The spelling of 210220201012221 in words is "two hundred ten trillion, two hundred twenty billion, two hundred one million, twelve thousand, two hundred twenty-one".