211020220201201 has 4 divisors (see below), whose sum is σ = 211042854579312. Its totient is φ = 210997585823092.

The previous prime is 211020220201127. The next prime is 211020220201237. The reversal of 211020220201201 is 102102022020112.

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 a cyclic number.

It is not a de Polignac number, because 211020220201201 - 2⁷ = 211020220201073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211020220201261) 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, 11317175071 + ... + 11317193716.

It is an arithmetic number, because the mean of its divisors is an integer number (52760713644828).

Almost surely, 2^{211020220201201} is an apocalyptic number.

It is an amenable number.

211020220201201 is a deficient number, since it is larger than the sum of its proper divisors (22634378111).

211020220201201 is an equidigital number, since it uses as much as digits as its factorization.

211020220201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22634378110.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 211020220201201 its reverse (102102022020112), we get a palindrome (313122242221313).

The spelling of 211020220201201 in words is "two hundred eleven trillion, twenty billion, two hundred twenty million, two hundred one thousand, two hundred one".