2210001221211 has 12 divisors (see below), whose sum is σ = 3427756996392. Its totient is φ = 1262857840608.

The previous prime is 2210001221137. The next prime is 2210001221257. The reversal of 2210001221211 is 1121221000122.

It is not a de Polignac number, because 2210001221211 - 2²¹ = 2209999124059 is a prime.

It is a super-2 number, since 2×2210001221211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2210001201211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7517010810 + ... + 7517011103.

It is an arithmetic number, because the mean of its divisors is an integer number (285646416366).

Almost surely, 2^{2210001221211} is an apocalyptic number.

2210001221211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2210001221211 is a deficient number, since it is larger than the sum of its proper divisors (1217755775181).

2210001221211 is a wasteful number, since it uses less digits than its factorization.

2210001221211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15034021930 (or 15034021923 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2210001221211 its reverse (1121221000122), we get a palindrome (3331222221333).

The spelling of 2210001221211 in words is "two trillion, two hundred ten billion, one million, two hundred twenty-one thousand, two hundred eleven".