1212111130430 has 16 divisors (see below), whose sum is σ = 2181814205040. Its totient is φ = 484841303232.

The previous prime is 1212111130411. The next prime is 1212111130507. The reversal of 1212111130430 is 340311112121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1811141 + ... + 2388399.

It is an arithmetic number, because the mean of its divisors is an integer number (136363387815).

Almost surely, 2^{1212111130430} is an apocalyptic number.

1212111130430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212111130430 is a deficient number, since it is larger than the sum of its proper divisors (969703074610).

1212111130430 is a wasteful number, since it uses less digits than its factorization.

1212111130430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787243.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1212111130430 its reverse (340311112121), we get a palindrome (1552422242551).

The spelling of 1212111130430 in words is "one trillion, two hundred twelve billion, one hundred eleven million, one hundred thirty thousand, four hundred thirty".