212210021001 has 32 divisors (see below), whose sum is σ = 318274983936. Its totient is φ = 124637400000.

The previous prime is 212210020991. The next prime is 212210021029. The reversal of 212210021001 is 100120012212.

212210021001 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 212210021001 - 2⁶ = 212210020937 is a prime.

It is a super-2 number, since 2×212210021001² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212210021071) 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, 39745 + ... + 652686.

It is an arithmetic number, because the mean of its divisors is an integer number (9946093248).

Almost surely, 2^212210021001 is an apocalyptic number.

It is an amenable number.

212210021001 is a deficient number, since it is larger than the sum of its proper divisors (106064962935).

212210021001 is a wasteful number, since it uses less digits than its factorization.

212210021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692733.

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

Adding to 212210021001 its reverse (100120012212), we get a palindrome (312330033213).

The spelling of 212210021001 in words is "two hundred twelve billion, two hundred ten million, twenty-one thousand, one".