1212200001211 has 8 divisors (see below), whose sum is σ = 1215934146000. Its totient is φ = 1208467347360.

The previous prime is 1212200001193. The next prime is 1212200001269. The reversal of 1212200001211 is 1121000022121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212200001211 - 2³¹ = 1210052517563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212200001191 and 1212200001200.

It is not an unprimeable number, because it can be changed into a prime (1212200001611) 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, 1266945 + ... + 2007373.

It is an arithmetic number, because the mean of its divisors is an integer number (151991768250).

Almost surely, 2^{1212200001211} is an apocalyptic number.

1212200001211 is a deficient number, since it is larger than the sum of its proper divisors (3734144789).

1212200001211 is an equidigital number, since it uses as much as digits as its factorization.

1212200001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745469.

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

Adding to 1212200001211 its reverse (1121000022121), we get a palindrome (2333200023332).

The spelling of 1212200001211 in words is "one trillion, two hundred twelve billion, two hundred million, one thousand, two hundred eleven".