2101022212211 has 4 divisors (see below), whose sum is σ = 2262639305472. Its totient is φ = 1939405118952.

The previous prime is 2101022212199. The next prime is 2101022212213. The reversal of 2101022212211 is 1122122201012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2101022212211 - 2¹⁰ = 2101022211187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101022212211.

It is not an unprimeable number, because it can be changed into a prime (2101022212213) 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, 80808546611 + ... + 80808546636.

It is an arithmetic number, because the mean of its divisors is an integer number (565659826368).

Almost surely, 2^{2101022212211} is an apocalyptic number.

2101022212211 is a deficient number, since it is larger than the sum of its proper divisors (161617093261).

2101022212211 is a wasteful number, since it uses less digits than its factorization.

2101022212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161617093260.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2101022212211 its reverse (1122122201012), we get a palindrome (3223144413223).

The spelling of 2101022212211 in words is "two trillion, one hundred one billion, twenty-two million, two hundred twelve thousand, two hundred eleven".