212210001211 has 8 divisors (see below), whose sum is σ = 232845807600. Its totient is φ = 192190189152.

The previous prime is 212210001197. The next prime is 212210001253. The reversal of 212210001211 is 112100012212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-212210001211 is a prime.

It is a super-2 number, since 2×212210001211² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212210001191 and 212210001200.

It is not an unprimeable number, because it can be changed into a prime (212210061211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153997861 + ... + 153999238.

It is an arithmetic number, because the mean of its divisors is an integer number (29105725950).

Almost surely, 2^212210001211 is an apocalyptic number.

212210001211 is a deficient number, since it is larger than the sum of its proper divisors (20635806389).

212210001211 is a wasteful number, since it uses less digits than its factorization.

212210001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307997165.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212210001211 its reverse (112100012212), we get a palindrome (324310013423).

The spelling of 212210001211 in words is "two hundred twelve billion, two hundred ten million, one thousand, two hundred eleven".