1212000211011 has 16 divisors (see below), whose sum is σ = 1639378651680. Its totient is φ = 796368967680.

The previous prime is 1212000210973. The next prime is 1212000211033. The reversal of 1212000211011 is 1101120002121.

It is not a de Polignac number, because 1212000211011 - 2³⁹ = 662244397123 is a prime.

It is a super-2 number, since 2×1212000211011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212000211061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7167750 + ... + 7334891.

It is an arithmetic number, because the mean of its divisors is an integer number (102461165730).

Almost surely, 2^{1212000211011} is an apocalyptic number.

1212000211011 is a deficient number, since it is larger than the sum of its proper divisors (427378440669).

1212000211011 is a wasteful number, since it uses less digits than its factorization.

1212000211011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14503046.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1212000211011 its reverse (1101120002121), we get a palindrome (2313120213132).

It can be divided in two parts, 12120002110 and 11, that added together give a palindrome (12120002121).

The spelling of 1212000211011 in words is "one trillion, two hundred twelve billion, two hundred eleven thousand, eleven".