1212110211011 has 16 divisors (see below), whose sum is σ = 1445873793024. Its totient is φ = 993521368224.

The previous prime is 1212110210989. The next prime is 1212110211019. The reversal of 1212110211011 is 1101120112121.

It is not a de Polignac number, because 1212110211011 - 2¹⁸ = 1212109948867 is a prime.

It is a super-2 number, since 2×1212110211011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212110211019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 356651 + ... + 1597316.

It is an arithmetic number, because the mean of its divisors is an integer number (90367112064).

Almost surely, 2^{1212110211011} is an apocalyptic number.

1212110211011 is a deficient number, since it is larger than the sum of its proper divisors (233763582013).

1212110211011 is a wasteful number, since it uses less digits than its factorization.

1212110211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957850.

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

Adding to 1212110211011 its reverse (1101120112121), we get a palindrome (2313230323132).

The spelling of 1212110211011 in words is "one trillion, two hundred twelve billion, one hundred ten million, two hundred eleven thousand, eleven".