1212002111011 has 16 divisors (see below), whose sum is σ = 1268452373760. Its totient is φ = 1155869684640.

The previous prime is 1212002111003. The next prime is 1212002111039. The reversal of 1212002111011 is 1101112002121.

It is a happy number.

It is not a de Polignac number, because 1212002111011 - 2³ = 1212002111003 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212002110982 and 1212002111000.

It is not an unprimeable number, because it can be changed into a prime (1212002111051) 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, 10831596 + ... + 10942918.

It is an arithmetic number, because the mean of its divisors is an integer number (79278273360).

Almost surely, 2^{1212002111011} is an apocalyptic number.

1212002111011 is a deficient number, since it is larger than the sum of its proper divisors (56450262749).

1212002111011 is a wasteful number, since it uses less digits than its factorization.

1212002111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112746.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1212002111011 its reverse (1101112002121), we get a palindrome (2313114113132).

The spelling of 1212002111011 in words is "one trillion, two hundred twelve billion, two million, one hundred eleven thousand, eleven".