212211001101 has 32 divisors (see below), whose sum is σ = 316999526400. Its totient is φ = 125172903680.

The previous prime is 212211001091. The next prime is 212211001103. The reversal of 212211001101 is 101100112212.

It is not a de Polignac number, because 212211001101 - 2⁷ = 212211000973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212211001103) 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, 104556 + ... + 659813.

It is an arithmetic number, because the mean of its divisors is an integer number (9906235200).

Almost surely, 2^212211001101 is an apocalyptic number.

It is an amenable number.

212211001101 is a deficient number, since it is larger than the sum of its proper divisors (104788525299).

212211001101 is a wasteful number, since it uses less digits than its factorization.

212211001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764609.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212211001101 its reverse (101100112212), we get a palindrome (313311113313).

Subtracting from 212211001101 its reverse (101100112212), we obtain a square (111110888889 = 333333²).

It can be divided in two parts, 21 and 2211001101, that added together give a palindrome (2211001122).

The spelling of 212211001101 in words is "two hundred twelve billion, two hundred eleven million, one thousand, one hundred one".