212221210001101 has 16 divisors (see below), whose sum is σ = 255304163820160. Its totient is φ = 172329699648960.

The previous prime is 212221210001093. The next prime is 212221210001231. The reversal of 212221210001101 is 101100012122212.

It is not a de Polignac number, because 212221210001101 - 2³ = 212221210001093 is a prime.

It is a super-2 number, since 2×212221210001101² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212221210001501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102496471 + ... + 104546491.

It is an arithmetic number, because the mean of its divisors is an integer number (15956510238760).

Almost surely, 2^{212221210001101} is an apocalyptic number.

It is an amenable number.

212221210001101 is a deficient number, since it is larger than the sum of its proper divisors (43082953819059).

212221210001101 is a wasteful number, since it uses less digits than its factorization.

212221210001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828404.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212221210001101 its reverse (101100012122212), we get a palindrome (313321222123313).

The spelling of 212221210001101 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred ten million, one thousand, one hundred one".