1212200011211 has 24 divisors (see below), whose sum is σ = 1419067344240. Its totient is φ = 1032438052800.

The previous prime is 1212200011201. The next prime is 1212200011261. The reversal of 1212200011211 is 1121100022121.

It is not a de Polignac number, because 1212200011211 - 2¹⁴ = 1212199994827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212200011201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10844396 + ... + 10955606.

It is an arithmetic number, because the mean of its divisors is an integer number (59127806010).

Almost surely, 2^{1212200011211} is an apocalyptic number.

1212200011211 is a deficient number, since it is larger than the sum of its proper divisors (206867333029).

1212200011211 is a wasteful number, since it uses less digits than its factorization.

1212200011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112635 (or 112628 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212200011211 its reverse (1121100022121), we get a palindrome (2333300033332).

The spelling of 1212200011211 in words is "one trillion, two hundred twelve billion, two hundred million, eleven thousand, two hundred eleven".