1212210322211 has 16 divisors (see below), whose sum is σ = 1446141265920. Its totient is φ = 994222088640.

The previous prime is 1212210322189. The next prime is 1212210322241. The reversal of 1212210322211 is 1122230122121.

It is a cyclic number.

It is not a de Polignac number, because 1212210322211 - 2¹⁴ = 1212210305827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212210322241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31363961 + ... + 31402586.

It is an arithmetic number, because the mean of its divisors is an integer number (90383829120).

Almost surely, 2^{1212210322211} is an apocalyptic number.

1212210322211 is a deficient number, since it is larger than the sum of its proper divisors (233930943709).

1212210322211 is an equidigital number, since it uses as much as digits as its factorization.

1212210322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62766674.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1212210322211 its reverse (1122230122121), we get a palindrome (2334440444332).

The spelling of 1212210322211 in words is "one trillion, two hundred twelve billion, two hundred ten million, three hundred twenty-two thousand, two hundred eleven".