1212130001111 has 16 divisors (see below), whose sum is σ = 1234169346816. Its totient is φ = 1190278580736.

The previous prime is 1212130001077. The next prime is 1212130001161. The reversal of 1212130001111 is 1111000312121.

It is a de Polignac number, because none of the positive numbers 2^k-1212130001111 is a prime.

It is a super-2 number, since 2×1212130001111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212130001161) 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, 18597566 + ... + 18662628.

It is an arithmetic number, because the mean of its divisors is an integer number (77135584176).

Almost surely, 2^{1212130001111} is an apocalyptic number.

1212130001111 is a deficient number, since it is larger than the sum of its proper divisors (22039345705).

1212130001111 is a wasteful number, since it uses less digits than its factorization.

1212130001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66502.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1212130001111 its reverse (1111000312121), we get a palindrome (2323130313232).

The spelling of 1212130001111 in words is "one trillion, two hundred twelve billion, one hundred thirty million, one thousand, one hundred eleven".