1212300322211 has 4 divisors (see below), whose sum is σ = 1322509442424. Its totient is φ = 1102091202000.

The previous prime is 1212300322193. The next prime is 1212300322241. The reversal of 1212300322211 is 1122230032121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212300322211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212300322241) 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, 55104560090 + ... + 55104560111.

It is an arithmetic number, because the mean of its divisors is an integer number (330627360606).

Almost surely, 2^{1212300322211} is an apocalyptic number.

1212300322211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1212300322211 is a deficient number, since it is larger than the sum of its proper divisors (110209120213).

1212300322211 is a wasteful number, since it uses less digits than its factorization.

1212300322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110209120212.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1212300322211 its reverse (1122230032121), we get a palindrome (2334530354332).

The spelling of 1212300322211 in words is "one trillion, two hundred twelve billion, three hundred million, three hundred twenty-two thousand, two hundred eleven".