1212011101211 has 8 divisors (see below), whose sum is σ = 1241590518000. Its totient is φ = 1182432549760.

The previous prime is 1212011101043. The next prime is 1212011101219. The reversal of 1212011101211 is 1121011102121.

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 1212011101211 - 2¹⁰ = 1212011100187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212011101219) 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, 3313220 + ... + 3660798.

It is an arithmetic number, because the mean of its divisors is an integer number (155198814750).

Almost surely, 2^{1212011101211} is an apocalyptic number.

1212011101211 is a deficient number, since it is larger than the sum of its proper divisors (29579416789).

1212011101211 is an equidigital number, since it uses as much as digits as its factorization.

1212011101211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432669.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1212011101211 its reverse (1121011102121), we get a palindrome (2333022203332).

The spelling of 1212011101211 in words is "one trillion, two hundred twelve billion, eleven million, one hundred one thousand, two hundred eleven".