212220011001 has 32 divisors (see below), whose sum is σ = 301821511680. Its totient is φ = 132443660736.

The previous prime is 212220010963. The next prime is 212220011009. The reversal of 212220011001 is 100110022212.

212220011001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212220011001 - 2⁹ = 212220010489 is a prime.

It is a super-2 number, since 2×212220011001² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212220011009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36931 + ... + 652536.

It is an arithmetic number, because the mean of its divisors is an integer number (9431922240).

Almost surely, 2^212220011001 is an apocalyptic number.

It is an amenable number.

212220011001 is a deficient number, since it is larger than the sum of its proper divisors (89601500679).

212220011001 is a wasteful number, since it uses less digits than its factorization.

212220011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689613.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 212220011001 its reverse (100110022212), we get a palindrome (312330033213).

The spelling of 212220011001 in words is "two hundred twelve billion, two hundred twenty million, eleven thousand, one".