210220020123001 has 4 divisors (see below), whose sum is σ = 240251451569152. Its totient is φ = 180188588676852.

The previous prime is 210220020122993. The next prime is 210220020123013. The reversal of 210220020123001 is 100321020022012.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 210220020123001 - 2³ = 210220020122993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210220020103001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15015715723065 + ... + 15015715723078.

It is an arithmetic number, because the mean of its divisors is an integer number (60062862892288).

Almost surely, 2^{210220020123001} is an apocalyptic number.

It is an amenable number.

210220020123001 is a deficient number, since it is larger than the sum of its proper divisors (30031431446151).

210220020123001 is an equidigital number, since it uses as much as digits as its factorization.

210220020123001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30031431446150.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 210220020123001 its reverse (100321020022012), we get a palindrome (310541040145013).

The spelling of 210220020123001 in words is "two hundred ten trillion, two hundred twenty billion, twenty million, one hundred twenty-three thousand, one".