212220100001211 has 4 divisors (see below), whose sum is σ = 282960133334952. Its totient is φ = 141480066667472.

The previous prime is 212220100001177. The next prime is 212220100001219. The reversal of 212220100001211 is 112100001022212.

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

It is a cyclic number.

It is not a de Polignac number, because 212220100001211 - 2¹⁰ = 212220100000187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212220100001219) 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, 35370016666866 + ... + 35370016666871.

It is an arithmetic number, because the mean of its divisors is an integer number (70740033333738).

Almost surely, 2^{212220100001211} is an apocalyptic number.

212220100001211 is a deficient number, since it is larger than the sum of its proper divisors (70740033333741).

212220100001211 is an equidigital number, since it uses as much as digits as its factorization.

212220100001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70740033333740.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212220100001211 its reverse (112100001022212), we get a palindrome (324320101023423).

The spelling of 212220100001211 in words is "two hundred twelve trillion, two hundred twenty billion, one hundred million, one thousand, two hundred eleven".