211222202101001 has 32 divisors (see below), whose sum is σ = 266043815009280. Its totient is φ = 163214503792704.

The previous prime is 211222202100997. The next prime is 211222202101091. The reversal of 211222202101001 is 100101202222112.

It is not a de Polignac number, because 211222202101001 - 2² = 211222202100997 is a prime.

It is a super-2 number, since 2×211222202101001² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211222202101091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28980590 + ... + 35529128.

It is an arithmetic number, because the mean of its divisors is an integer number (8313869219040).

Almost surely, 2^{211222202101001} is an apocalyptic number.

It is an amenable number.

211222202101001 is a deficient number, since it is larger than the sum of its proper divisors (54821612908279).

211222202101001 is a wasteful number, since it uses less digits than its factorization.

211222202101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6556845.

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

Adding to 211222202101001 its reverse (100101202222112), we get a palindrome (311323404323113).

The spelling of 211222202101001 in words is "two hundred eleven trillion, two hundred twenty-two billion, two hundred two million, one hundred one thousand, one".