1212100130331 has 24 divisors (see below), whose sum is σ = 1762646340000. Its totient is φ = 802605888000.

The previous prime is 1212100130327. The next prime is 1212100130369. The reversal of 1212100130331 is 1330310012121.

1212100130331 is a `hidden beast` number, since 121 + 210 + 0 + 1 + 3 + 0 + 331 = 666.

It is not a de Polignac number, because 1212100130331 - 2² = 1212100130327 is a prime.

It is a super-2 number, since 2×1212100130331² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212100130431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10599045 + ... + 10712793.

It is an arithmetic number, because the mean of its divisors is an integer number (73443597500).

Almost surely, 2^{1212100130331} is an apocalyptic number.

1212100130331 is a deficient number, since it is larger than the sum of its proper divisors (550546209669).

1212100130331 is a wasteful number, since it uses less digits than its factorization.

1212100130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121747 (or 121744 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1212100130331 its reverse (1330310012121), we get a palindrome (2542410142452).

It can be divided in two parts, 1212100 and 130331, that added together give a palindrome (1342431).

The spelling of 1212100130331 in words is "one trillion, two hundred twelve billion, one hundred million, one hundred thirty thousand, three hundred thirty-one".