2211021022201 has 4 divisors (see below), whose sum is σ = 2226927648400. Its totient is φ = 2195114396004.

The previous prime is 2211021022183. The next prime is 2211021022271. The reversal of 2211021022201 is 1022201201122.

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 2211021022201 - 2⁵ = 2211021022169 is a prime.

It is a super-2 number, since 2×2211021022201² (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 (2211021022271) 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, 7953312891 + ... + 7953313168.

It is an arithmetic number, because the mean of its divisors is an integer number (556731912100).

Almost surely, 2^{2211021022201} is an apocalyptic number.

It is an amenable number.

2211021022201 is a deficient number, since it is larger than the sum of its proper divisors (15906626199).

2211021022201 is a wasteful number, since it uses less digits than its factorization.

2211021022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15906626198.

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

Adding to 2211021022201 its reverse (1022201201122), we get a palindrome (3233222223323).

The spelling of 2211021022201 in words is "two trillion, two hundred eleven billion, twenty-one million, twenty-two thousand, two hundred one".