2211020221201 has 4 divisors (see below), whose sum is σ = 2412022059504. Its totient is φ = 2010018382900.

The previous prime is 2211020221141. The next prime is 2211020221211. The reversal of 2211020221201 is 1021220201122.

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 2211020221201 - 2¹¹ = 2211020219153 is a prime.

It is a super-2 number, since 2×2211020221201² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211020221211) 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, 100500919135 + ... + 100500919156.

It is an arithmetic number, because the mean of its divisors is an integer number (603005514876).

Almost surely, 2^{2211020221201} is an apocalyptic number.

It is an amenable number.

2211020221201 is a deficient number, since it is larger than the sum of its proper divisors (201001838303).

2211020221201 is a wasteful number, since it uses less digits than its factorization.

2211020221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201001838302.

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

Adding to 2211020221201 its reverse (1021220201122), we get a palindrome (3232240422323).

The spelling of 2211020221201 in words is "two trillion, two hundred eleven billion, twenty million, two hundred twenty-one thousand, two hundred one".