101211222101211 has 6 divisors (see below), whose sum is σ = 146193987479540. Its totient is φ = 67474148067468.

The previous prime is 101211222101159. The next prime is 101211222101251. The reversal of 101211222101211 is 112101222112101.

It is a happy number.

101211222101211 is a `hidden beast` number, since 1 + 0 + 121 + 122 + 210 + 1 + 211 = 666.

It is not a de Polignac number, because 101211222101211 - 2¹³ = 101211222093019 is a prime.

It is a super-2 number, since 2×101211222101211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101211222101251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5622845672281 + ... + 5622845672298.

Almost surely, 2^{101211222101211} is an apocalyptic number.

101211222101211 is a deficient number, since it is larger than the sum of its proper divisors (44982765378329).

101211222101211 is a wasteful number, since it uses less digits than its factorization.

101211222101211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11245691344585 (or 11245691344582 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 101211222101211 its reverse (112101222112101), we get a palindrome (213312444213312).

The spelling of 101211222101211 in words is "one hundred one trillion, two hundred eleven billion, two hundred twenty-two million, one hundred one thousand, two hundred eleven".