1212210000211 has 4 divisors (see below), whose sum is σ = 1385382857392. Its totient is φ = 1039037143032.

The previous prime is 1212210000119. The next prime is 1212210000259. The reversal of 1212210000211 is 1120000122121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1212210000211 - 2⁹ = 1212209999699 is a prime.

It is a super-2 number, since 2×1212210000211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212210000191 and 1212210000200.

It is not an unprimeable number, because it can be changed into a prime (1212210000511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86586428580 + ... + 86586428593.

It is an arithmetic number, because the mean of its divisors is an integer number (346345714348).

Almost surely, 2^{1212210000211} is an apocalyptic number.

1212210000211 is a deficient number, since it is larger than the sum of its proper divisors (173172857181).

1212210000211 is an equidigital number, since it uses as much as digits as its factorization.

1212210000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173172857180.

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

Adding to 1212210000211 its reverse (1120000122121), we get a palindrome (2332210122332).

The spelling of 1212210000211 in words is "one trillion, two hundred twelve billion, two hundred ten million, two hundred eleven", and thus it is an aban number.